题解 | #小乐乐改数字#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String n=in.next();
        char[] ch=n.toCharArray();
        String num="";
        for(int i=0;i<ch.length;i++){
           num+=(int)ch[i]%2;
        }  
        System.out.print(Integer.parseInt(num));
    }
}