import java.util.Scanner;

public class StringExplosion_07 {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        StringBuilder result = new StringBuilder();

        for (int i = 0; i < input.length(); i++) {
            char symbol = input.charAt(i);
            if (symbol == '>') {
                result.append(symbol);
                i++;
                int explosion = input.charAt(i) - '0';
                explosion--;

                while (explosion > 0 && i < input.length() - 1) {
                    i++;
                    symbol = input.charAt(i);

                    if (symbol == '>') {
                        result.append(symbol);
                        i++;
                        explosion += input.charAt(i) - '0';
                        explosion--;
                        continue;
                    }
                    explosion--;
                }
            } else {
                result.append(symbol);
            }
        }

        System.out.println(result);
    }
}