#include<bits/stdc++.h>
using namespace std;
int main(){
#ifndef ONLINE_JUDGE
freopen("input.txt" , "r" , stdin);
freopen("output.txt" , "w" , stdout);
#endif
int t;cin>>t;
while(t!=42)
{
cout<<t<<endl;
cin>>t;
}
return 0;
}
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