#include <stdio.h>

void print_bits(int x){
	int i = sizeof(x)*8-1;
	while(i>=0){
		if((x & (1<<i))!=0)
			putchar('1');
		else
			putchar('0');
		i--;
	}
	putchar('\n');
}

int main(){
	int x;
	scanf("%d", &x);
	print_bits(x);
	
	return 0;
}