题解 | #进制转换#

import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()) {
            String line = sc.nextLine();
            line = line.replaceFirst("^0[xX]", "");
            Integer num = Integer.parseInt(line, 16);
            System.out.println(num);
        }
    }
}