SMALL PROGRAM..
still learning C

#include <stdio.h>

int main()

{
    char a;
    char b;
    printf("FIRST CHARACTER??\n");
    a=getchar();
    fflush(stdin);
    printf("SECOND CHARACTER??\n");
    b=getchar();
    if (a>b)
    {
          printf("'%c' IS GREATER THAN '%c'\n",a,b);
          }
    else if(b>a)
    {
         printf("'%c' SMALLER THAN '%c'\n",a,b);
         }
         else
         {
             printf("NEXT TIME DONT TYPE SAME CHARACTER\n");
}
return(0);
}