include

include

include

using namespace std;

int main() { int x, y; cin >> x >> y; string temp; getline(cin, temp); string Reference; getline(cin, Reference); string Pattern; getline(cin, Pattern);

string buf;
stringstream ss(Pattern);
vector <string> tokens;
bool flag = false;
int count = 0;

while(ss >> buf)
{
    tokens.push_back(buf);
}

vector<string>::iterator it;

vector<string> RefTokens;
stringstream sS(Reference);

string Buf;
while(sS >> Buf)
{
    RefTokens.push_back(Buf);
}

vector<string>::iterator jt;
for(it = tokens.begin(); it != tokens.end(); ++it)
{
    string str = *it;
    flag = false;
    for(jt = RefTokens.begin(); jt != RefTokens.end(); ++jt)
    {
        string Str = *jt;
        if(str == Str)
        {
            flag = true;
            count++;
        }
    }
    if(!flag)
    {
        break;
    }
}

if(flag)
{
    cout << "Yes";
}
else
{
    cout << "No";
}
return 0;

}

//Hey Gerasiov //What is wrong with my c++ solution. It is giving wrong an //swer for some test cases.