//#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; //#define int long long #define rep(i,s,n) for(int i = s;i=(s);i--) #define all(v) (v).begin(),(v).end() #define pb push_back #define fi first #define se second #define chmin(a,b) a=min((a),(b)) #define chmax(a,b) a=max((a),(b)) typedef long long ll; typedef pairpint; typedef vectorvint; typedef vectorvpint; typedef pair P1; typedef pair P2; typedef pair PP; static const ll maxLL = (ll)1 << 62; const ll MOD = 1000000007; const ll INF = 1e18; int ca[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 }; signed main() { int i, j; string s; int n, m, cnt = 0; cin >> n >> m; rep(i, 0, n) { string s; cin >> s; if (s.find("LOVE") != string::npos) { cout << "YES" << endl; return 0; } } cout << "NO" << endl; getchar(); getchar(); return 0; }