Submission #1356955

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Source Code Expand

import java.util.*;

public class Main {    
    public static void main(String[] args){
        
        Scanner sc = new Scanner(System.in);
         
        String A = sc.next();
        
        String ans = "";
        
        char alphabet[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','p','q','r','s','t','u','v','w','x','y','z'};
        
        if(A.length() == 1){
           int c = (A.charAt(0) - 'a') - 1;   
           if(c == -1){
               System.out.println(-1);
               return;
           }
           System.out.println(alphabet[c]);
           return;
        }                

        for(int i = 0;i < A.length() - 1;i++){
            ans += String.valueOf(A.charAt(i));
        }        
        
        System.out.println(ans);
        
    }            
}
        
        
        
        

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