Submission #1697189

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Source Code Expand

#include  <iostream>
#include <cstring>
#include <string>
int main(){
using  std::cin;
using  std::cout;
using  std::endl;
using std::string;
string a,A;
cin >> A;
int n;
n = A.size();
for(char ch:A){
 if(A[0]=='a'&&n==1){
 cout << -1 << endl; 
 return 0;
 }else if(n==1&&A[0]!='a') {
 cout << 'a' << endl;
 return 0; 
 }
}
for (int i = 0; i < n-1; i++){
cout << A[i];
}
cout <<endl;
return 0;
}

Submission Info

Judge Result