#include<stdio.h>
int main() {
int i,sum=0;
for(i=1;i<1000;i++){
if(i%2==0)
sum=sum+i;
}
return 0;
}
I2luY2x1ZGU8c3RkaW8uaD4KCmludCBtYWluKCkgewogICAgaW50IGksc3VtPTA7CiAgICBmb3IoaT0xO2k8MTAwMDtpKyspewogICAgICAgIGlmKGklMj09MCkKICAgICAgICBzdW09c3VtK2k7CiAgICAgICAKICAgIH0KICAgICBwcmludGYoIuWQiOioiO+8miVkIFxuIiwgc3VtKTsKICAgIHJldHVybiAwOwp9Cg==