#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;
}

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