#include <stdio.h>

#define BYTESIZE 8

void printbits(int interval)
{
	int i;

	for (i = 0; i < BYTESIZE * sizeof(int); ++i)
		printf("%d", (interval << i & 1 <<
			BYTESIZE * sizeof(int) -1) ? 1 : 0);
	putchar('\n');
}

int main( void )
{
	int i;

	for (i = 0; i < 5; ++i) {
		printf("Decimal %2d equals binary ", i);
		printbits(i);
	}
	for (i = -1; i > -5; --i) {
		printf("Decimal %2d equals binary ", i);
		printbits(i);
	}
}