import java.util.*;
import java.io.*;
 
public class Main 
{
    static class Node
    {
        int depth;
        String obj;
 
        public Node(int depth, String obj) 
        {
            this.depth = depth;
            this.obj = obj;
        }
    }
 
    static TreeMap<String, ArrayList<Node>> map = new TreeMap<>();
    static int n;
 
    public static void main(String[] args) throws IOException 
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
 
        n = Integer.parseInt(br.readLine());
 
        for (int i = 0; i < n; i++) 
        {
            st = new StringTokenizer(br.readLine());
 
            int idx = Integer.parseInt(st.nextToken());
            String root = st.nextToken();
            ArrayList<Node> nodes = map.getOrDefault(root, new ArrayList<>());
 
            for (int j = 0; j < idx - 1; j++) 
            {
                String obj = st.nextToken();
                nodes.add(new Node(j + 1, obj));
                // 각 노드가 추가될 때마다 출력
                printNode(root, new Node(j + 1, obj));
            }
 
            map.put(root, nodes);
        }
    }
 
    // 노드 출력을 위한 메소드
    static void printNode(String root, Node node) {
        StringBuilder sb = new StringBuilder();
        sb.append(root);
        for (int i = 0; i < node.depth; i++) {
            sb.append("--");
        }
        sb.append(node.obj);
        System.out.println(sb.toString());
    }
}
 

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