func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int w, h;     cin >> w >> h;     char char1[100][100], char2[100][100];     string char3[200];     for (int i(0); i < h; ++i) cin >> char1[i];     for (int i(0); i < w; ++i) {       for (int j(0); j < h; ++j) {         char2[i][j] = char1[abs(j - h + 1)][i];       }     }     for (int i(0); i < w; ++i) {       for (int j(0); j < h / 2; ++j) {         char tmp = char2[i][j];         char2[i][j] = char2[i][abs(j - h + 1)];         char2[i][abs(j - h + 1)] = tmp;       }     }     for (int i(0); i < 2 * w; i += 2) {       for (int j(0); j < h; ++j) {         char3[i].insert(char3[i].end(), char2[i / 2][j]);         char3[i].insert(char3[i].end(), char2[i / 2][j]);       }       char3[i + 1] = char3[i];     }     for (int i(0); i < 2 * w; ++i) cout << char3[i] << endl;     return 0;   }   