#include<bits/stdc++.h>
#include"testlib.h"
using ll = long long;
using namespace std;

// this is a validator.
// if this code results in WA, the inputs are correctly validated.

int main(int argc, char* argv[]){
    const ll MIN_N = 1;
    const ll MAX_N = 1000000000000000000;
    registerValidation(argc, argv);
    inf.readLong(MIN_N, MAX_N);
    inf.readEoln();
    inf.readEof();
    return 0;
}