Submission #1432635

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <cmath>
#include <numeric>
#include <fstream>
#include <queue>
#include <cstdio>
#include <deque>
#define fol(i,n) for(int i=0;i<n;i++)
#define db(a) cout << a<< endl;
using namespace std;

int main(){
    string A;
    cin >> A;
    if (A=="a") cout << -1 <<endl;
    else cout << "a" <<endl;
    return 0;
}

Submission Info

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