#include <iostream>
#include <algorithm>
#include <vector>
#include <cstring>
using namespace std;
void print_binary(int x) {
    string s = "";
    while(x > 0) {
        s += (x % 2) + '0';
        x /= 2;
    }
    reverse(s.begin(), s.end());
    cout << s << endl;
}
int main() {
    int n;
    cin >> n;
    print_binary(n);

    return 0;
}
// 1011000101110
// 1011000101110