IMPROVE MY AWESOME C PROGRAM

#include <stdio.h>
int main(void) {
   int num;
   num = 0xFFFE;
   printf("In hex: %X. In octal: %o.\n", num, num);
   return 0;
}

FUCKING WIN

#include <stdio.h>

int main(void)
{
   printf("In hex: FFFE. In octal: 177776.\n");
   return 0;
}