#include <stdio.h>

int main()
{
	int x = 0;
	int mask = 0x00000001;
	int currentBit = 0;
	int i = 0;
	int seperate = 0;

	printf("Enter an integer: ");
        scanf("%d", &x);

	for(i; i < 32; i++)
	{
		currentBit = !!(x & (mask << 31 - i));
		printf("%d", currentBit);
		seperate++;
		if (!(seperate % 4))
		{
			printf(" ");
			seperate = 0;
		}
	}
	printf("\n");
	return(0);
}