import java.util.*;

import java.io.*;

class Main {

public static boolean StringChallenge(String str) {

// code goes here

String[] strArr= str.split(" ");

String myStr =strArr[1];

List<String> myList = new ArrayList<String>();

List<String> newList = new ArrayList<String>();

List<String> otherList = new ArrayList<String>();

int j=0;

for (int i = 1; i < myStr.length() ; i++) {

if (myStr.charAt(i - 1) != myStr.charAt(i)) {

myList.add(myStr.substring(j, i));

j = i;

}

}

myList.add(myStr.substring(j));

System.out.println(myList);

for(String i: myList){

if(i.matches("[0-9]")){

newList.add("$");

otherList.add("$");

}

else if(i.length()==1){

newList.add("+");

otherList.add("*{1}");

}

else if(i.length()!=3){

newList.add("*{"+String.valueOf(i.length())+"}");

otherList.add("*{"+String.valueOf(i.length())+"}");

}

else if(i.length()==3) {

newList.add("*");

otherList.add("*");

}

}

String result=newList.toString().replace("[","").replace("]","").replaceAll(",","").replaceAll(" ","");

String result1=otherList.toString().replace("[","").replace("]","").replaceAll(",","").replaceAll(" ","");

System.out.println(result);

if(result.equals(strArr[0])||result1.equals(strArr[0])){

return true;

}

return false;

}

public static void main (String[] args) {

// keep this function call here

Scanner s = new Scanner(System.in);

System.out.print(StringChallenge(s.nextLine()));

}

}