题解 | #进制转换#

import java.io.*;
import java.util.*;

public class Main {

    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        while (input.hasNextLine()){
            String s = input.nextLine();
            String substring = s.substring(2);
            int i = Integer.parseInt(substring, 16);
            System.out.println(i);
        }
    }
}