/* p7.c */

#include <stdio.h>

int main()
{
   unsigned char x, y;
   char          u, v;

   unsigned int  a, b;
   int           c, d;

   x = 0xff;
   u = 0xff;
   printf("%d %d \n", x, u);
   printf("%u %u \n", x, u);

   y = 5;
   v = 5;

   if (x > y)
      printf(" x is greater than y \n");
   if (u > v)
      printf(" u is greater than v \n");

}