#include <stdio.h>

void printBits(int i)
{
   int k;

   for (k = 7; k >= 0; k--)
      if ( (i & (1 << k)) == 0 )
         putchar('0');
      else
         putchar('1');
}


int main()
{
   signed char i = 130;

   printf("\n\nInternally, i is stored as: ");
   printBits(i);
   printf("\n\n");

   printf("i interpreted as an UNSIGNED number = %hhu\n", i);
   printf("i interpreted as an SIGNED number   = %hhd\n", i);
}