#include <iostream>
using namespace std;
int n;
char a[12][12], b[12][12], c[12][12], d[12][12];
void fz90 (char a[12][12], char b[12][12])
{
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            b[j][n + 1 - i] = a[i][j];
        }
    }
    return;
}
void fs (char a[12][12], char b[12][12])
{
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            b[i][n + 1 - j] = a[i][j];
        }
    }
    return;
}
bool check (char a[12][12], char b[12][12])
{
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            if (a[i][j] != b[i][j]) return false;
        }
    }
    return true;
}
int main()
{
    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 >> c[i][j];
        }
    }
    fz90(a, b);
    if (check(b, c))
    {
        cout << "1" << endl;
        return 0;
    }
    fz90(b, d);
    if (check(d, c))
    {
        cout << "2" << endl;
        return 0;
    }
    fz90(d, b);
    if (check(b, c))
    {
        cout << "3" << endl;
        return 0;
    }
    fs(a, b);
    if (check(b, c))
    {
        cout << "4" << endl;
        return 0;
    }
    fz90(b, d);
    if (check(d, c))
    {
        cout << "5" << endl;
        return 0;
    }
    return 0;
}