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

static char g[1024][1024];
static char s[1024][1024];

int main()
{
	int e1x[] = {1, 0, -1, 0};
	int e1y[] = {0, -1, 0, 1};
	int e2x[] = {0, 1, 0, -1};
	int e2y[] = {1, 0, -1, 0};
	int vx[] = {0, 0, 1, 1};
	int vy[] = {0, 1, 1, 0};

	int N;
	while (scanf("%d\n", &N), N != 0) {
		for (int i = 0; i < N; ++i) {
			for (int j = 0; j < N; ++j)
				g[i][j] = getchar();
			getchar();
		}
		for (int i = 0; i < N; ++i) {
			for (int j = 0; j < N; ++j)
				s[i][j] = getchar();
			getchar();
		}
		for (int k = 0; k < 4; k++) {
			for (int i = 0; i < N; ++i) {
				for (int j = 0; j < N; ++j) {
					int x = e1x[k] * j + e2x[k] * i + (N-1)*vx[k];
					int y = e1y[k] * j + e2y[k] * i + (N-1)*vy[k];
					if (g[y][x] == 'O')
						putchar(s[i][j]);
				}
			}
		}
		putchar('\n');
	}
	return 0;
}