#include <iostream>

std::ostream & printBinary ( const int n, std::ostream & os );

int size;

int main ( int argc, char **argv ) {
	int n;
	switch ( sizeof ( int ) ) {
		case 8:	size = 64;	break;
		case 4:	size = 32;	break;
		case 2:	size = 16;	break;
		case 1:	size = 8;	break;
	}

	std::cout << "sizeof int: " << size << std::endl;
	std::cout << "Number: ";
	while ( std::cin >> n ) {
		std::cout << "Decimal: " << n << std::endl;
		std::cout << "Binary: ";
		std::cout << printBinary ( n, std::cout );
		std::cout << std::endl;
		std::cout << "Number: ";
	}
	return 0;
}

std::ostream & printBinary ( const int n, std::ostream & os ) {
	for ( int i = size; i > 0; i-- )
		os << ((i%4&&i<size)?"":" ") << ((n >> (i-1)) & 1);
	return os;
}