题解 | #表示数字#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner fzhinput = new Scanner(System.in);
        String zfc = fzhinput.nextLine();
        StringBuilder stack = new StringBuilder();
        boolean pd=true;
        for(int i=0;i<zfc.length();i++){
            if(Character.isDigit(zfc.charAt(i))&&pd){
                stack.append('*');
                pd=false;
            }
            else if(pd==false&&!Character.isDigit(zfc.charAt(i))){
                stack.append('*');
                pd=true;
            }
            else if(!Character.isDigit(zfc.charAt(i))){
                pd=true;
            }
            stack.append(zfc.charAt(i));
        }
        if(pd==false){
            stack.append('*');
        }
        System.out.println(stack.toString());
    }
}