Submission #162818

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Source Code Expand

#include <iostream>

using namespace std;

int main()
{
	char a[10];
	int i = 0;
	cin >> a;

	while(a[i])
		i++;		

	if(i == 1){
		if(a[0] == 'a')
			cout << -1 << endl;
		else 
			cout << 'a' << endl;
	}else{
		for(int j = i; j > 0; j--)
				cout << 'a';
	}
	cout << endl;

	return 0;
}

Submission Info

Judge Result