#include <stdio.h>
int main(void) {
 
    int k; /* simple integer to hold result */	
    int l; /* simple integer to hold result */
 
    l = 5;
    printf ("l = %i \n", l++); /* post increment */
 
    k = 5;
    printf ("k = %i \n", ++k);  /* pre increment */
 
    /* when implemented by itself, both of these     */
    /* will just increment these two variables by 1  */
 
        printf ("\nBefore: k = %i and l = %i", k, l);
    ++l;
    k++;
 
    printf ("\nAfter: k = %i and l = %i", k, l);
 
	return 0;
}
 

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