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

void solve() {
    int n, k; cin >> n >> k;
    vector<string> grid(n);
    for (auto& x : grid) cin >> x;

    auto check_down = [&](int i, int j, char player) {
        for (int row = i; row < i + k; ++row) {
            if (row >= n || grid[row][j] != player) return false;
        }
        return true;
    };
    auto check_right = [&](int i, int j, char player) {
        for (int col = j; col < j + k; ++col) {
            if (col >= n || grid[i][col] != player) return false;
        }
        return true;
    };
    auto check_diag_down = [&](int i, int j, char player) {
        for (int diag = 0; diag < k; ++diag) {
            if (i + diag >= n || j + diag >= n || grid[i + diag][j + diag] != player) return false;
        }
        return true;
    };
    auto check_diag_up= [&](int i, int j, char player) {
        for (int diag = 0; diag < k; ++diag) {
            if (i - diag < 0 || j + diag >= n || grid[i - diag][j + diag] != player) return false;
        }
        return true;
    };

    array<vector<pair<int, int>>, 2> pos{};
    for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) {
        if (grid[i][j] == 'x') pos[0].emplace_back(i, j);
        if (grid[i][j] == 'o') pos[1].emplace_back(i, j);
    }
    if (abs(int(pos[1].size()) - int(pos[0].size())) > 1) {
        cout << "NIE\n";
        return;
    }

    auto print_turns = [&](int first) {
        cout << "TAK\n";
        int y = 0;
        for (int x = 0; x < pos[first].size(); ++x) {
            cout << pos[first][x].first + 1 << ' ' << pos[first][x].second + 1<< '\n';
            if (y < pos[1 - first].size()) {
                cout << pos[1 - first][y].first + 1 << ' ' << pos[1 - first][y].second + 1<< '\n';
                y++;
            }
        }
        if (y < pos[1 - first].size()) {
            cout << pos[1 - first][y].first + 1 << ' ' << pos[1 - first][y].second + 1<< '\n';
            y++;
        }
        assert(y == pos[1 - first].size());
    };

    auto try_last_move = [&](int last_i, int last_j, array<vector<pair<int,int>>, 2> pos) {
        int last_move = (grid[last_i][last_j] == 'x'? 0 : 1);
        bool has_winning = false;
        for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) if (grid[i][j] != '.') {
            has_winning |= check_down(i, j, grid[i][j]);
            has_winning |= check_right(i, j, grid[i][j]);
            has_winning |= check_diag_up(i, j, grid[i][j]);
            has_winning |= check_diag_down(i, j, grid[i][j]);
        }
        if (!has_winning) return false;

        has_winning = false;
        grid[last_i][last_j] = '.';
        for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) if (grid[i][j] != '.') {
            has_winning |= check_down(i, j, grid[i][j]);
            has_winning |= check_right(i, j, grid[i][j]);
            has_winning |= check_diag_up(i, j, grid[i][j]);
            has_winning |= check_diag_down(i, j, grid[i][j]);
        }
        grid[last_i][last_j] = (last_move? 'o' : 'x');
        if (has_winning) return false;

        int first_turn;
        {
            if (pos[last_move].size() > pos[1 - last_move].size()) first_turn = last_move;
            else if (pos[last_move].size() == pos[1 - last_move].size()) first_turn = 1 - last_move;
            else {
                return false;
            }
        }
        pos[last_move].erase(std::remove(pos[last_move].begin(), pos[last_move].end(), pair<int,int>{last_i, last_j}));
        print_turns(first_turn);
        cout << last_i + 1 << ' ' << last_j + 1<< '\n';
        return true;
    };

    for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) if (grid[i][j] != '.') {
        if (try_last_move(i, j, pos)) {
            return;
        }
    }
    if (pos[0].size() + pos[1].size() != n * n) {
        cout << "NIE\n";
        return;
    }
    bool has_winning = false;
    for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) if (grid[i][j] != '.') {
        has_winning |= check_down(i, j, grid[i][j]);
        has_winning |= check_right(i, j, grid[i][j]);
        has_winning |= check_diag_up(i, j, grid[i][j]);
        has_winning |= check_diag_down(i, j, grid[i][j]);
    }
    if (!has_winning) {
        print_turns((pos[0].size() > pos[1].size()? 0 : 1));
        return;
    }
    cout << "NIE\n";
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int t = 1; cin >> t;
    while (t--) solve();
}