#include <iostream>
#include <vector>

int main()
{
	int decimal = 1234;
	std::vector<int> binary;
	
	int i = 0;
	int value = decimal;
	while( value > 0 )
	{
    	binary.push_back(value & 1);
    	value >>= 1;
    	++i;
	}
	
	
	for( std::vector<int>::reverse_iterator it = binary.rbegin(); it != binary.rend(); ++it )
		std::cout << *it;
		
	return (0);
}