Submission #162098

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <list>
#include <sstream>
#include <algorithm>
using namespace std;

class ABC007{
public:
	void SolveProblemB(){
		string str;
		cin >> str;
		if (str.size()==1 && str[0] == 'a'){
			cout << -1 << endl;
		}
		else{
			cout << "a" << endl;
		}
		return;
	}
};

int main(){
	ABC007 ANS;
	ANS.SolveProblemB();
	return 0;
}

Submission Info

Judge Result