#include <iostream>
#include <vector>
#include <queue>

using namespace std;

const int inf = 1e9;

vector < pair < int, int > > shift = { {-1, 0}, {1, 0}, {0, 1}, {0, -1} };

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

    vector < vector < char > > a(n, vector < char >(n));

    pair < int, int > start, finish;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cin >> a[i][j];
            if (a[i][j] == '@') {
                start = { i, j };
            }
            if (a[i][j] == 'X') {
                finish = { i, j };
            }
        }
    }

    vector < vector < bool > > used(n, vector < bool >(n, false));
    vector < vector < int > > dist(n, vector < int >(n, inf));
    vector < vector < pair < int, int > > > par(n, vector < pair < int, int > >(n, {-1, -1}));

    queue < pair < int, int > > Q;
    Q.push(start);
    used[start.first][start.second] = true;
    dist[start.first][start.second] = 0;

    while (Q.size() != 0) {
        pair < int, int > v = Q.front();
        Q.pop();

        int x = v.first;
        int y = v.second;

        for (int i = 0; i < shift.size(); i++) {
            int nx = v.first + shift[i].first;
            int ny = v.second + shift[i].second;

            if (nx >= 0 && nx < n && ny >= 0 && ny < n) {
                if (used[nx][ny] == false && a[nx][ny] != 'O') {
                    dist[nx][ny] = dist[x][y] + 1;
                    used[nx][ny] = true;
                    par[nx][ny] = { x, y };
                    Q.push({ nx, ny });
                }
            }
        }
    }

    if (dist[finish.first][finish.second] == inf) {
        cout << "N";
        system("pause");
        return 0;
    }

    int tx = finish.first, ty = finish.second;

    while (par[tx][ty] != make_pair(-1, -1)) {
        a[tx][ty] = '+';
        int qx = par[tx][ty].first;
        int qy = par[tx][ty].second;
        tx = qx;
        ty = qy;
    }

    cout << "Y\n";

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cout << a[i][j];
        }
        cout << "\n";
    }

    system("pause");
    return 0;
}