#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;
}

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