#include <iostream>

int main() {
    int a[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            std::cout << a[i][j] << ' ';
        }
        std::cout << '\n';
    }

    std::cout << '\n';

    std::swap(a[0], a[2]);

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            std::cout << a[i][j] << ' ';
        }
        std::cout << '\n';
    }
}