#include <iostream> #include <utility> #include <vector> using namespace std; void getBinary(int x){ vector<int> v; while(x != 0){ v.push_back(x % 2); x /= 2; } for(int i = v.size() - 1; i >= 0; i --) cout << v[i]; cout << endl; } int main() { int x; while (cin >> x) { getBinary(x); } return 0; }