#include<iostream> #include<cstdio> #include<vector> using namespace std; int main(){ unsigned int n; while(scanf("%d",&n)!=EOF){ vector<int> binary; while(n){ binary.push_back(n%2); n/=2; } for(int i=binary.size()-1;i>=0;--i){ printf("%d",binary[i]); } printf("\n"); } return 0; }