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

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