#include<stdio.h>
#include<stdlib.h>
int main() {
    int num[]={4,6,8,9,10,18,40,44,46,48,49,60,64,66,68,69,80,81,84,86,88,90,94,96,99,100,108,180,400,404,406,408,440,444,446,448,460,464,466,468,469,480,484,486,488,490,494,496,600,604,606,608,609,640,644,646,648,649,660,664,666,668,669,680,684,686,688,690,694,696,699,800,801,804,806,808,810,818,840,844,846,848,860,864,866,868,880,884,886,888,900,906,909,940,946,949,960,964,966,969,990,996,999,1000,1008,1080,1800,4000,4004,4006,4008,4040,4044,4046,4048,4060,4064,4066,4068,4080,4084,4086,4088,4400,4404,4406,4408,4440,4444,4446,4448,4460,4464,4466,4468,4480,4484,4486,4488,4600,4604,4606,4608,4640,4644,4646,4648,4660,4664,4666,4668,4669,4680,4684,4686,4688,4690,4694,4696,4800,4804,4806,4808,4840,4844,4846,4848,4860,4864,4866,4868,4880,4884,4886,4888,4900,4906,4940,4946,4960,4964,4966,6000,6004,6006,6008,6009,6040,6044,6046,6048,6049,6060,6064,6066,6068,6069,6080,6084,6086,6088,6090,6094,6096,6099,6400,6404,6406,6408,6440,6444,6446,6448,6460,6464,6466,6468,6480,6484,6486,6488,6490,6494,6496,6600,6604,6606,6608,6609,6640,6644,6646,6648,6649,6660,6664,6666,6668,6669,6680,6684,6686,6688,6690,6694,6696,6699,6800,6804,6806,6808,6840,6844,6846,6848,6860,6864,6866,6868,6880,6884,6886,6888,6900,6906,6909,6940,6946,6960,6964,6966,6969,6990,6996,6999,8000,8001,8004,8006,8008,8010,8018,8040,8044,8046,8048,8060,8064,8066,8068,8080,8084,8086,8088,8100,8108,8180,8400,8404,8406,8408,8440,8444,8446,8448,8460,8464,8466,8468,8480,8484,8486,8488,8600,8604,8606,8608,8640,8644,8646,8648,8660,8664,8666,8668,8680,8684,8686,8688,8800,8804,8806,8808,8840,8844,8846,8848,8860,8864,8866,8868,8880,8884,8886,8888,9000,9006,9009,9060,9066,9069,9090,9096,9099,9400,9406,9460,9466,9490,9600,9606,9609,9640,9660,9664,9666,9669,9690,9696,9699,9900,9906,9909,9960,9966,9969,9990,9996,9999,10000,10008,10080,10800,18000,40000,40004,40006,40008,40040,40044,40046,40048,40060,40064,40066,40068,40080,40084,40086,40088,40400,40404,40406,40408,40440,40444,40446,40448,40460,40464,40466,40468,40480,40484,40486,40488,40600,40604,40606,40608,40640,40644,40646,40648,40660,40664,40666,40668,40680,40684,40686,40688,40800,40804,40806,40808,40840,40844,40846,40848,40860,40864,40866,40868,40880,40884,40886,40888,44000,44004,44006,44008,44040,44044,44046,44048,44060,44064,44066,44068,44080,44084,44086,44088,44400,44404,44406,44408,44440,44444,44446,44448,44460,44464,44466,44468,44480,44484,44486,44488,44600,44604,44606,44608,44640,44644,44646,44648,44660,44664,44666,44668,44680,44684,44686,44688,44800,44804,44806,44808,44840,44844,44846,44848,44860,44864,44866,44868,44880,44884,44886,44888,46000,46004,46006,46008,46040,46044,46046,46048,46060,46064,46066,46068,46080,46084,46086,46088,46400,46404,46406,46408,46440,46444,46446,46448,46460,46464,46466,46468,46480,46484,46486,46488,46600,46604,46606,46608,46640,46644,46646,46648,46660,46664,46666,46668,46669,46680,46684,46686,46688,46690,46694,46696,46800,46804,46806,46808,46840,46844,46846,46848,46860,46864,46866,46868,46880,46884,46886,46888,46900,46906,46940,46946,46960,46964,46966,48000,48004,48006,48008,48040,48044,48046,48048,48060,48064,48066,48068,48080,48084,48086,48088,48400,48404,48406,48408,48440,48444,48446,48448,48460,48464,48466,48468,48480,48484,48486,48488,48600,48604,48606,48608,48640,48644,48646,48648,48660,48664,48666,48668,48680,48684,48686,48688,48800,48804,48806,48808,48840,48844,48846,48848,48860,48864,48866,48868,48880,48884,48886,48888,49000,49006,49060,49066,49400,49406,49460,49466,49600,49606,49640,49660,49664,49666,60000,60004,60006,60008,60009,60040,60044,60046,60048,60049,60060,60064,60066,60068,60069,60080,60084,60086,60088,60090,60094,60096,60099,60400,60404,60406,60408,60440,60444,60446,60448,60460,60464,60466,60468,60480,60484,60486,60488,60490,60494,60496,60600,60604,60606,60608,60609,60640,60644,60646,60648,60660,60664,60666,60668,60669,60680,60684,60686,60688,60690,60694,60696,60699,60800,60804,60806,60808,60840,60844,60846,60848,60860,60864,60866,60868,60880,60884,60886,60888,60900,60906,60909,60940,60946,60960,60964,60966,60969,60990,60996,60999,64000,64004,64006,64008,64040,64044,64046,64048,64060,64064,64066,64068,64080,64084,64086,64088,64400,64404,64406,64408,64440,64444,64446,64448,64460,64464,64466,64468,64480,64484,64486,64488,64600,64604,64606,64608,64640,64644,64646,64648,64660,64664,64666,64668,64680,64684,64686,64688,64800,64804,64806,64808,64840,64844,64846,64848,64860,64864,64866,64868,64880,64884,64886,64888,64900,64906,64940,64946,64960,64964,64966,66000,66004,66006,66008,66009,66040,66044,66046,66048,66049,66060,66064,66066,66068,66069,66080,66084,66086,66088,66090,66094,66096,66099,66400,66404,66406,66408,66440,66444,66446,66448,66460,66464,66466,66468,66480,66484,66486,66488,66490,66494,66496,66600,66604,66606,66608,66609,66640,66644,66646,66648,66649,66660,66664,66666,66668,66669,66680,66684,66686,66688,66690,66694,66696,66699,66800,66804,66806,66808,66840,66844,66846,66848,66860,66864,66866,66868,66880,66884,66886,66888,66900,66906,66909,66940,66946,66960,66964,66966,66969,66990,66996,66999,68000,68004,68006,68008,68040,68044,68046,68048,68060,68064,68066,68068,68080,68084,68086,68088,68400,68404,68406,68408,68440,68444,68446,68448,68460,68464,68466,68468,68480,68484,68486,68488,68600,68604,68606,68608,68640,68644,68646,68648,68660,68664,68666,68668,68680,68684,68686,68688,68800,68804,68806,68808,68840,68844,68846,68848,68860,68864,68866,68868,68880,68884,68886,68888,69000,69006,69009,69060,69066,69069,69090,69096,69099,69400,69406,69460,69466,69600,69606,69609,69640,69660,69664,69666,69669,69690,69696,69699,69900,69906,69909,69960,69966,69969,69990,69996,69999,80000,80001,80004,80006,80008,80010,80018,80040,80044,80046,80048,80060,80064,80066,80068,80080,80084,80086,80088,80100,80108,80180,80400,80404,80406,80408,80440,80444,80446,80448,80460,80464,80466,80468,80480,80484,80486,80488,80600,80604,80606,80608,80640,80644,80646,80648,80660,80664,80666,80668,80680,80684,80686,80688,80800,80804,80806,80808,80840,80844,80846,80848,80860,80864,80866,80868,80880,80884,80886,80888,81000,81008,81080,81800,84000,84004,84006,84008,84040,84044,84046,84048,84060,84064,84066,84068,84080,84084,84086,84088,84400,84404,84406,84408,84440,84444,84446,84448,84460,84464,84466,84468,84480,84484,84486,84488,84600,84604,84606,84608,84640,84644,84646,84648,84660,84664,84666,84668,84680,84684,84686,84688,84800,84804,84806,84808,84840,84844,84846,84848,84860,84864,84866,84868,84880,84884,84886,84888,86000,86004,86006,86008,86040,86044,86046,86048,86060,86064,86066,86068,86080,86084,86086,86088,86400,86404,86406,86408,86440,86444,86446,86448,86460,86464,86466,86468,86480,86484,86486,86488,86600,86604,86606,86608,86640,86644,86646,86648,86660,86664,86666,86668,86680,86684,86686,86688,86800,86804,86806,86808,86840,86844,86846,86848,86860,86864,86866,86868,86880,86884,86886,86888,88000,88004,88006,88008,88040,88044,88046,88048,88060,88064,88066,88068,88080,88084,88086,88088,88400,88404,88406,88408,88440,88444,88446,88448,88460,88464,88466,88468,88480,88484,88486,88488,88600,88604,88606,88608,88640,88644,88646,88648,88660,88664,88666,88668,88680,88684,88686,88688,88800,88804,88806,88808,88840,88844,88846,88848,88860,88864,88866,88868,88880,88884,88886,88888,90000,90006,90009,90060,90066,90069,90090,90096,90099,90600,90606,90609,90660,90666,90669,90690,90696,90699,90900,90906,90909,90960,90966,90969,90990,90996,90999,94000,94006,94060,94066,94600,94660,94666,94900,96000,96006,96009,96060,96066,96069,96090,96096,96099,96400,96600,96606,96609,96640,96660,96664,96666,96669,96690,96696,96699,96900,96906,96909,96960,96966,96969,96990,96996,96999,99000,99006,99009,99060,99066,99069,99090,99096,99099,99600,99606,99609,99660,99666,99669,99690,99696,99699,99900,99906,99909,99960,99966,99969,99990,99996,99999,100000};
    int sum[100002];
    int i,k=0;
    sum[0]=1;sum[1]=2;sum[2]=2;
    for(i=3;i<100002;i++) {
        if(i==num[k]) {
            sum[i]=sum[i-1]+1;
            k++;
        }
        else {
            sum[i]=sum[i-1];
        }
    }
    int cases,A,B;scanf("%d",&cases);
    while(cases--) {
        scanf("%d%d",&A,&B);
        if(A>B) {
            printf("%d\n",sum[A]-sum[B-1]);
        }
        else {
            printf("%d\n",sum[B]-sum[A-1]);
        }
    }
    return 0;
}
 
 
 

#include<stdio.h>
#include<stdlib.h>
int main() {
    int num[]={4,6,8,9,10,18,40,44,46,48,49,60,64,66,68,69,80,81,84,86,88,90,94,96,99,100,108,180,400,404,406,408,440,444,446,448,460,464,466,468,469,480,484,486,488,490,494,496,600,604,606,608,609,640,644,646,648,649,660,664,666,668,669,680,684,686,688,690,694,696,699,800,801,804,806,808,810,818,840,844,846,848,860,864,866,868,880,884,886,888,900,906,909,940,946,949,960,964,966,969,990,996,999,1000,1008,1080,1800,4000,4004,4006,4008,4040,4044,4046,4048,4060,4064,4066,4068,4080,4084,4086,4088,4400,4404,4406,4408,4440,4444,4446,4448,4460,4464,4466,4468,4480,4484,4486,4488,4600,4604,4606,4608,4640,4644,4646,4648,4660,4664,4666,4668,4669,4680,4684,4686,4688,4690,4694,4696,4800,4804,4806,4808,4840,4844,4846,4848,4860,4864,4866,4868,4880,4884,4886,4888,4900,4906,4940,4946,4960,4964,4966,6000,6004,6006,6008,6009,6040,6044,6046,6048,6049,6060,6064,6066,6068,6069,6080,6084,6086,6088,6090,6094,6096,6099,6400,6404,6406,6408,6440,6444,6446,6448,6460,6464,6466,6468,6480,6484,6486,6488,6490,6494,6496,6600,6604,6606,6608,6609,6640,6644,6646,6648,6649,6660,6664,6666,6668,6669,6680,6684,6686,6688,6690,6694,6696,6699,6800,6804,6806,6808,6840,6844,6846,6848,6860,6864,6866,6868,6880,6884,6886,6888,6900,6906,6909,6940,6946,6960,6964,6966,6969,6990,6996,6999,8000,8001,8004,8006,8008,8010,8018,8040,8044,8046,8048,8060,8064,8066,8068,8080,8084,8086,8088,8100,8108,8180,8400,8404,8406,8408,8440,8444,8446,8448,8460,8464,8466,8468,8480,8484,8486,8488,8600,8604,8606,8608,8640,8644,8646,8648,8660,8664,8666,8668,8680,8684,8686,8688,8800,8804,8806,8808,8840,8844,8846,8848,8860,8864,8866,8868,8880,8884,8886,8888,9000,9006,9009,9060,9066,9069,9090,9096,9099,9400,9406,9460,9466,9490,9600,9606,9609,9640,9660,9664,9666,9669,9690,9696,9699,9900,9906,9909,9960,9966,9969,9990,9996,9999,10000,10008,10080,10800,18000,40000,40004,40006,40008,40040,40044,40046,40048,40060,40064,40066,40068,40080,40084,40086,40088,40400,40404,40406,40408,40440,40444,40446,40448,40460,40464,40466,40468,40480,40484,40486,40488,40600,40604,40606,40608,40640,40644,40646,40648,40660,40664,40666,40668,40680,40684,40686,40688,40800,40804,40806,40808,40840,40844,40846,40848,40860,40864,40866,40868,40880,40884,40886,40888,44000,44004,44006,44008,44040,44044,44046,44048,44060,44064,44066,44068,44080,44084,44086,44088,44400,44404,44406,44408,44440,44444,44446,44448,44460,44464,44466,44468,44480,44484,44486,44488,44600,44604,44606,44608,44640,44644,44646,44648,44660,44664,44666,44668,44680,44684,44686,44688,44800,44804,44806,44808,44840,44844,44846,44848,44860,44864,44866,44868,44880,44884,44886,44888,46000,46004,46006,46008,46040,46044,46046,46048,46060,46064,46066,46068,46080,46084,46086,46088,46400,46404,46406,46408,46440,46444,46446,46448,46460,46464,46466,46468,46480,46484,46486,46488,46600,46604,46606,46608,46640,46644,46646,46648,46660,46664,46666,46668,46669,46680,46684,46686,46688,46690,46694,46696,46800,46804,46806,46808,46840,46844,46846,46848,46860,46864,46866,46868,46880,46884,46886,46888,46900,46906,46940,46946,46960,46964,46966,48000,48004,48006,48008,48040,48044,48046,48048,48060,48064,48066,48068,48080,48084,48086,48088,48400,48404,48406,48408,48440,48444,48446,48448,48460,48464,48466,48468,48480,48484,48486,48488,48600,48604,48606,48608,48640,48644,48646,48648,48660,48664,48666,48668,48680,48684,48686,48688,48800,48804,48806,48808,48840,48844,48846,48848,48860,48864,48866,48868,48880,48884,48886,48888,49000,49006,49060,49066,49400,49406,49460,49466,49600,49606,49640,49660,49664,49666,60000,60004,60006,60008,60009,60040,60044,60046,60048,60049,60060,60064,60066,60068,60069,60080,60084,60086,60088,60090,60094,60096,60099,60400,60404,60406,60408,60440,60444,60446,60448,60460,60464,60466,60468,60480,60484,60486,60488,60490,60494,60496,60600,60604,60606,60608,60609,60640,60644,60646,60648,60660,60664,60666,60668,60669,60680,60684,60686,60688,60690,60694,60696,60699,60800,60804,60806,60808,60840,60844,60846,60848,60860,60864,60866,60868,60880,60884,60886,60888,60900,60906,60909,60940,60946,60960,60964,60966,60969,60990,60996,60999,64000,64004,64006,64008,64040,64044,64046,64048,64060,64064,64066,64068,64080,64084,64086,64088,64400,64404,64406,64408,64440,64444,64446,64448,64460,64464,64466,64468,64480,64484,64486,64488,64600,64604,64606,64608,64640,64644,64646,64648,64660,64664,64666,64668,64680,64684,64686,64688,64800,64804,64806,64808,64840,64844,64846,64848,64860,64864,64866,64868,64880,64884,64886,64888,64900,64906,64940,64946,64960,64964,64966,66000,66004,66006,66008,66009,66040,66044,66046,66048,66049,66060,66064,66066,66068,66069,66080,66084,66086,66088,66090,66094,66096,66099,66400,66404,66406,66408,66440,66444,66446,66448,66460,66464,66466,66468,66480,66484,66486,66488,66490,66494,66496,66600,66604,66606,66608,66609,66640,66644,66646,66648,66649,66660,66664,66666,66668,66669,66680,66684,66686,66688,66690,66694,66696,66699,66800,66804,66806,66808,66840,66844,66846,66848,66860,66864,66866,66868,66880,66884,66886,66888,66900,66906,66909,66940,66946,66960,66964,66966,66969,66990,66996,66999,68000,68004,68006,68008,68040,68044,68046,68048,68060,68064,68066,68068,68080,68084,68086,68088,68400,68404,68406,68408,68440,68444,68446,68448,68460,68464,68466,68468,68480,68484,68486,68488,68600,68604,68606,68608,68640,68644,68646,68648,68660,68664,68666,68668,68680,68684,68686,68688,68800,68804,68806,68808,68840,68844,68846,68848,68860,68864,68866,68868,68880,68884,68886,68888,69000,69006,69009,69060,69066,69069,69090,69096,69099,69400,69406,69460,69466,69600,69606,69609,69640,69660,69664,69666,69669,69690,69696,69699,69900,69906,69909,69960,69966,69969,69990,69996,69999,80000,80001,80004,80006,80008,80010,80018,80040,80044,80046,80048,80060,80064,80066,80068,80080,80084,80086,80088,80100,80108,80180,80400,80404,80406,80408,80440,80444,80446,80448,80460,80464,80466,80468,80480,80484,80486,80488,80600,80604,80606,80608,80640,80644,80646,80648,80660,80664,80666,80668,80680,80684,80686,80688,80800,80804,80806,80808,80840,80844,80846,80848,80860,80864,80866,80868,80880,80884,80886,80888,81000,81008,81080,81800,84000,84004,84006,84008,84040,84044,84046,84048,84060,84064,84066,84068,84080,84084,84086,84088,84400,84404,84406,84408,84440,84444,84446,84448,84460,84464,84466,84468,84480,84484,84486,84488,84600,84604,84606,84608,84640,84644,84646,84648,84660,84664,84666,84668,84680,84684,84686,84688,84800,84804,84806,84808,84840,84844,84846,84848,84860,84864,84866,84868,84880,84884,84886,84888,86000,86004,86006,86008,86040,86044,86046,86048,86060,86064,86066,86068,86080,86084,86086,86088,86400,86404,86406,86408,86440,86444,86446,86448,86460,86464,86466,86468,86480,86484,86486,86488,86600,86604,86606,86608,86640,86644,86646,86648,86660,86664,86666,86668,86680,86684,86686,86688,86800,86804,86806,86808,86840,86844,86846,86848,86860,86864,86866,86868,86880,86884,86886,86888,88000,88004,88006,88008,88040,88044,88046,88048,88060,88064,88066,88068,88080,88084,88086,88088,88400,88404,88406,88408,88440,88444,88446,88448,88460,88464,88466,88468,88480,88484,88486,88488,88600,88604,88606,88608,88640,88644,88646,88648,88660,88664,88666,88668,88680,88684,88686,88688,88800,88804,88806,88808,88840,88844,88846,88848,88860,88864,88866,88868,88880,88884,88886,88888,90000,90006,90009,90060,90066,90069,90090,90096,90099,90600,90606,90609,90660,90666,90669,90690,90696,90699,90900,90906,90909,90960,90966,90969,90990,90996,90999,94000,94006,94060,94066,94600,94660,94666,94900,96000,96006,96009,96060,96066,96069,96090,96096,96099,96400,96600,96606,96609,96640,96660,96664,96666,96669,96690,96696,96699,96900,96906,96909,96960,96966,96969,96990,96996,96999,99000,99006,99009,99060,99066,99069,99090,99096,99099,99600,99606,99609,99660,99666,99669,99690,99696,99699,99900,99906,99909,99960,99966,99969,99990,99996,99999,100000};
    int sum[100002];
    int i,k=0;
    sum[0]=1;sum[1]=2;sum[2]=2;
    for(i=3;i<100002;i++) {
        if(i==num[k]) {
            sum[i]=sum[i-1]+1;
            k++;
        }
        else {
            sum[i]=sum[i-1];
        }
    }
    int cases,A,B;scanf("%d",&cases);
    while(cases--) {
        scanf("%d%d",&A,&B);
        if(A>B) {
            printf("%d\n",sum[A]-sum[B-1]);
        }
        else {
            printf("%d\n",sum[B]-sum[A-1]);
        }
    }
    return 0;
}




MgozIDUKMiAz

2
3 5
2 3