import java.io.*;
import java.util.*;

class Node {
	private Node lnode, rnode;
	private int  value;

	private Node() {
		lnode = rnode = null;
		value = -1;
	}

	private static Node parseRoot(StringReader sr) throws IOException {
		if(sr.read() != '(') {
			throw new IllegalStateException();
		}

		Node node = parseNode(sr);
		return node;
	}

	private static Node parseNode(StringReader sr) throws IOException {
		Node node = new Node();
		int c;

		c = sr.read();

		if(c == ')') {
			return node;
		}

		if(c == '(') {
			node.lnode = parseNode(sr);
			c = sr.read();
		}

		if(c != ',') {
			throw new IllegalStateException();
		}

		c = sr.read();

		if(c == '(') {
			node.rnode = parseNode(sr);
			c = sr.read();
		}

		if(c != ')') {
			throw new IllegalStateException();
		}

		return node;
	}

	private int order(int n) {
		if(lnode != null) n = lnode.order(n);
		value = ++n;
		if(rnode != null) n = rnode.order(n);
		return n;
	}

	public static Node create(String s) throws IOException {
		StringReader sr = new StringReader(s);
		Node node = parseRoot(sr);
		node.order(0);
		return node;
	}

	public String toString() {
		String s = Integer.toString(value);
		if(lnode != null) s += " " + lnode.toString();
		if(rnode != null) s += " " + rnode.toString();
		return s;
	}
}

public class trees {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		while(true) {
			String s = br.readLine();
			if(s.equals("()")) break;
			System.out.println(Node.create(s));
		}
	}
}