44分，写的很丑陋

#include <iostream>
using namespace std;
class square {
	private:
		int n;
		char a [15][15], b[15][15];
	public:
		void assign() {
			cin >> n;
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= n; j++) {
					cin >> a[i][j];
				}
			}
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= n; j++) {
					cin >> b[i][j];
				}
			}
		}
		void rotate_90_degrees() {
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j < i; j++) {
					char t = a[i][j];
					a[i][j] = a[j][i];
					a[j][i] = t;
				}
				char t[15][15];
				for (int i = 1; i <= n; i++) {
					for (int j = 1; j <= n; j++) {
						t[i][j] = a[i][n + 1 - j];
					}
				}
				for (int i = 1; i <= n; i++) {
					for (int j = 1; j <= n; j++) {
						a[i][j] = t[i][j];
					}
				}
			}
		}
		void rotate_180_degrees () {
			rotate_90_degrees();
			rotate_90_degrees();
		}
		void rotate_270_degrees() {
			rotate_180_degrees();
			rotate_90_degrees();
		}
		void mirror() {
			char t[15][15];
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= n; j++) {
					t[i][j] = a[i][n + 1 - j];
				}
			}
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= n; j++) {
					a[i][j] = t[i][j];
				}
			}
		}
		void combination1() {
			mirror();
			rotate_90_degrees();
		}
		void combination2() {
			mirror();
			rotate_180_degrees();
		}
		void combination3() {
			mirror();
			rotate_270_degrees();
		}
		void keep() {
		}
		int contrast() {
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= n; j++) {
					if (a[i][j] != b[i][j]) {
						return 0;
					}
				}
			}
			return 1;
		}
};
int main() {
	square s;
	s.assign();
	square s1 = s;
	s1.rotate_90_degrees();
	if (s1.contrast()) {
		cout << "1";
	} else {
		square s2 = s;
		s2.rotate_180_degrees();
		if (s2.contrast()) {
			cout << "2";
		} else {
			square s3 = s;
			s3.rotate_180_degrees();
			if (s3.contrast()) {
				cout << "3";
			} else {
				square s4 = s;
				s4.mirror();
				if (s4.contrast()) {
					cout << "4";
				} else {
					square s5_1 = s;
					s5_1.combination1();
					if (s5_1.contrast()) {
						cout << "5";
					} else {
						square s5_2 = s;
						s5_2.combination2();
						if (s5_2.contrast()) {
							cout << "5";
						} else {
							square s5_3 = s;
							s5_3.combination3();
							if (s5_3.contrast()) {
								cout << "5";
							} else {
								square s6 = s;
								s6.keep();
								if (s6.contrast()) {
									cout << "6";
								} else {
									cout << "7";
								}
							}
						}
					}
				}
			}
		}
	}
	return 0;
	 
}