#include <iostream>
#include <queue>
using namespace std;

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

    pair<int, int> niza[n];
    for(int i = 0; i < n; i++) {
        cin >> niza[i].first >> niza[i].second;
    }

    for(int i = 0; i < n; i++) {
        cout << niza[i].first << " " << niza[i].second << endl;
    }



    return 0;
}