using namespace std;int n;char a[15][15],b[15][15],c[15][15],d[15][15];bool check(char s[15][15]) {for(int i = 1;i <= n;i++) {for(int j = 1;j <= n;j++) {if(s[i][j] != c[i][j]) return false;}}return true;}bool work1(){for(int i=1;i<=n;i++){for(int j=1;j<=n;j++)b[j][n-i+1]=a[i][j];}if(check(b)) return true;return false;}bool work2(){for(int i=1;i<=n;i++){for(int j=1;j<=n;j++)b[n-i+1][n-j+1]=a[i][j];}if(check(b)) return true;return false;}bool work3(){for(int i=1;i<=n;i++){for(int j=1;j<=n;j++)b[n-j+1][i]=a[i][j];}if(check(b)) return true;return false;}bool work4(){for(int i=1;i<=n;i++){for(int j=1;j<=n;j++)b[i][n-j+1]=a[i][j];}if(check(b)) return true;return false;}bool work5(){work4();for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)a[i][j]=b[i][j];if(work1())return 1;for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)a[i][j]=b[i][j]; if(work2())return 1;for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)a[i][j]=b[i][j]; if(work3())return 1;return 0;}bool work6(){if(check(b)) return true;return false;}void work(){if(work1()){cout<<1;return ;}if(work2()){cout<<2;return ;}if(work3()){cout<<3;return ;}if(work4()){cout<<4;return ;}if(work5()){cout<<5;return ;}if(work6()){cout<<6;return ;}cout<<7;}int main(){cin>>n;for(int i=1;i<=n;i++)for(int j=1;j<=n;j++){cin>>a[i][j];d[i][j]=a[i][j];}for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)cin>>c[i][j];work();return 0; }
