Java部分A+B正整数A的“DA（为1位整数）部分”定义为由A中所有DA组成的新整数PA。例如：给定A = 3862767，DA = 6，则A的“6部分”PA是66，因为A中有2个6。现给定A、DA

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        String[] ss = s.split(" ");
        String a = ss[0];
        char[] as = a.toCharArray();
        String da = ss[1];
        String b = ss[2];
        char[] bs = b.toCharArray();
        String db = ss[3];
        String pa = "";
        String pb = "";
        int count1 = 0;
        int count2 = 0;
        for (int i = 0; i < as.length; i++) {
            if (as[i] == da.charAt(0)) count1++;
        }
        for (int i = 0; i < bs.length; i++) {
            if (bs[i] == db.charAt(0)) count2++;
        }
        for (int i = 0; i < count1; i++) {
            pa = pa.concat(da);
        }
        for (int i = 0; i < count2; i++) {
            pb = pb.concat(db);
        }
        if (pa == "") pa = "0";
        if (pb == "") pb = "0";
        System.out.println(Integer.parseInt(pa)+Integer.parseInt(pb));
        scanner.close();
    }
}