func_code_string: #include <bits/stdc++.h>   using namespace std;   int k, n, m, ans = 0;   int dx[] = {0, 0, 0, 0, -1, 1};   int dy[] = {0, 0, 1, -1, 0, 0};   int dz[] = {1, -1, 0, 0, 0, 0};   char a[11][11][11];   bool vis[11][11][11];   void dfs(int x, int y, int z) {     if (x < 0 || y < 0 || z < 0 || x >= n || y >= m || z >= k ||         a[x][y][z] ==  #  || vis[x][y][z])       return;     vis[x][y][z] = 1;     ans++;     int xx, yy, zz;     for (int i = 0; i < 6; i++) {       xx = x + dx[i];       yy = y + dy[i];       zz = z + dz[i];       dfs(xx, yy, zz);     }   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cin >> k >> n >> m;     for (int t = 0; t < k; t++) {       for (int i = 0; i < n; i++) {         for (int j = 0; j < m; j++) {           cin >> a[i][j][t];         }       }     }     int x, y;     cin >> x >> y;     dfs(x - 1, y - 1, 0);     cout << ans;   }   