#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int my_strcmp(char *a, char *b)
{
  while (*a == *b) {
    if (*a == '\0') return 0;
    a++; b++;
    }
  return *a - *b;
}

int main(int argc, char *argv[])
{
  char *p = argv[1], *q = argv[2];

  printf("%d\n", strcmp(p, q));
  
  return 0;
}