#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <iterator>
#include <functional>
#include <complex>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
#include <cstring>
#ifdef __GNUC__
#include <ext/hash_map>
#define unordered_map __gnu_cxx::hash_map
#else
#include <unordered_map>
#endif
using namespace std;
typedef long long LL;
typedef complex<double> CMP;
class GogoXCake { public:
string solve(vector <string> cake, vector <string> cutter)
{
const int theX = cutter[0].find('.');
for(int y=0; y<cake.size(); ++y)
for(int x=0; x<cake[y].size(); ++x) {
if( cake[y][x] == '.' ) {
if( !place(cake, y, x-theX, cutter) )
return "NO";
}
}
return "YES";
}
bool place(vector <string>& cake, int Y, int X, const vector <string>& cutter)
{
for(int y=0; y<cutter.size(); ++y)
for(int x=0; x<cutter[y].size(); ++x)
{
int yy = Y+y, xx = X+x;
if( yy<0 || cake.size()<=yy || xx<0 || cake[0].size()<=xx )
return false;
if( cutter[y][x]=='.' ) {
if( cake[yy][xx]=='X' )
return false;
cake[yy][xx] = 'X';
}
}
return true;
}
};
// BEGIN CUT HERE
#include <ctime>
double start_time; string timer()
{ ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
{ os << "{ ";
for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
void verify_case(const string& Expected, const string& Received) {
bool ok = (Expected == Received);
if(ok) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl;
cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
#define END verify_case(_, GogoXCake().solve(cake, cutter));}
int main(){
CASE(0)
string cake_[] = {"X.X"
,"..."
,"..."
,"X.X"};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {".X"
,".."
,"X."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "YES";
END
CASE(1)
string cake_[] = {"..XX"
,"...X"
,"X..."
,"XX.."};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {".."
,".."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "NO";
END
CASE(2)
string cake_[] = {"...X..."};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {"..."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "YES";
END
CASE(3)
string cake_[] = {".X."
,"X.X"
,".X."};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {"."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "YES";
END
CASE(4)
string cake_[] = {"XXXXXXX"
,"X.....X"
,"X.....X"
,"X.....X"
,"XXXXXXX"};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {".X."
,"XXX"
,".X."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "NO";
END
CASE(5)
string cake_[] = {".."
,"X."
,".X"};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {".."
,".X"
,"X."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "NO";
END
CASE(6)
string cake_[] = {"X.."
,".XX"
,".XX"};
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = {".XX"
,".XX"
,"X.."};
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = "NO";
END
/*
CASE(7)
string cake_[] = ;
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = ;
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = ;
END
CASE(8)
string cake_[] = ;
vector <string> cake(cake_, cake_+sizeof(cake_)/sizeof(*cake_));
string cutter_[] = ;
vector <string> cutter(cutter_, cutter_+sizeof(cutter_)/sizeof(*cutter_));
string _ = ;
END
*/
}
// END CUT HERE