import java.util.Scanner;

//advanced

public class Expand {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

//todo: take as an input a combination of characters and numbers (e.g. 2a3b5c)

//expand the String by printing each letter so many times as the number before the letter indicates

//e.g. 2a3b5c -> aabbbccccc

//Hint: first start with inputs where there is always a number and then a character, then think about how

//to improve your code such that you can use values greater or equal 10, eg. 10a13b22c

//Further modification: if a character should only be printed one time you don't need to write any number infront of that character

//e.g. a3b12cd5e -> abbbccccccccccccdeeeee

}

}