#include <bits/stdc++.h>
using namespace std;

struct treeNode {
    int data;
    treeNode* left;
    treeNode* right;
};

treeNode* newNode(int data) {
    treeNode* node = new treeNode;

    node->data = data;
    node->left = NULL;
    node->right = NULL;

    return node;
}

void printInOrder(treeNode* node) {
    if (node == NULL)
        return;

    printInOrder(node->left);

    cout << node->data << " ";
    cout.flush();

    printInOrder(node->right);
}

bool insertNode(treeNode* current_node, int& v, int& data, char& c) {
    while (true) {
        if (current_node == NULL) {
            return false;
        }
        if (current_node->data == v) {
            if (c == 'L') {
                current_node->left = newNode(data);
            }
            else {
                current_node->right = newNode(data);
            }
            return true;
        }
        if (insertNode(current_node->left, v, data, c)) {
            return true;
        }
        if (insertNode(current_node->right, v, data, c)) {
            return true;
        }
    }
}

//1
//4
//10 20 L 10 30 R 20 40 L 20 60 R

//1
//2
//1 2 R 1 3 L

//1
//6
//10 20 L 10 30 R 20 40 L 20 60 R 30 50 L 30 70 R


int main() {
    int T;
    cin >> T;

    for (int i = 0; i < T; i++) {
        int n;
        cin >> n;
        treeNode* root = NULL;
        for (int j = 0; j < n; j++) {
            int v, data;
            char c;
            cin >> v >> data >> c;

            if (j == 0) {
                root = newNode(v);
            }
            insertNode(root, v, data, c);
        }

        printInOrder(root);
        cout << endl;
    }
}