#include <stdio.h>

main()
{
	int i, j, mask;
	
	for(i=0; i<127; i++)
	{
		printf("ASCII character number %3d (", i);
		for (j = 6; j >= 0; j--)
		{
				mask = 1 << j;
				printf("%d", i & mask ? 1 : 0);
		}
		printf(") (%02X) => %c\n", i, i);
	}
}