
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
    public static void main(String args[]){
        String a=A0();
        System.out.println(v1(a.charAt(0)));

    }

    static char v1(char c){
        return ++c;
    }

    public static String A0(){

        try(BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {
            String str = reader.readLine();
            return str;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;

    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz