#include <stdio.h>
void fun (long  s, long *t)
{   long  sl=10;
    s /= 10;
    *t = s % 10;
    while ( s > 0)
    {  s = s/100;
       *t = s%10*sl + *t;
       sl = sl * 10;
    }
}

main()
{  long   s, t;
   printf("\nPlease enter s:"); scanf("%ld", &s);
   fun(s, &t);
   printf("The result is: %ld\n", t);
}