#include <bits/stdc++.h>
#include "testlib.h"

#define forn(i, n) for (int i = 0; i < int(n); ++i)

using namespace std;

int n;
string w[143];

int dx[] = {-2, -2, -1, -1, 1, 1, 2, 2};
int dy[] = {-1, 1, -2, 2, -2, 2, -1, 1};

bool good(int x, int y)
{
	return (x >= 0 && x < n && y >= 0 && y < n);
}

int readAndCheckAnswer(InStream& in) {
	for(int i = 0; i < n; i++)
		w[i] = in.readLine(format("[BW]{%d}", n).c_str(), "s");
	int ans = 0;
	for(int i = 0; i < n; i++)
		for(int j = 0; j < n; j++)
		{
			if(w[i][j] == 'B') continue;
			for(int k = 0; k < 8; k++)
			{
				int x = dx[k] + i;
				int y = dy[k] + j;
				if(good(x, y) && w[x][y] == 'B')
					ans++;
			}
		}
	return ans;
}

int main(int argc, char* argv[]) {
	registerTestlibCmd(argc, argv);
	
	n = inf.readInt();
	
	bool ja = readAndCheckAnswer(ans);
	bool pa = readAndCheckAnswer(ouf);

	if(ja > pa)
		quitf(_wa, "jury has better answer");
	if(pa > ja)
		quitf(_fail, "participant has better answer");
	
	quitf(_ok, "ok");
}