B.cpp

#include <bits/stdc++.h>

#define FOR(i,a,b) for(int i=(a),_b=(b); i<=_b; i++)
#define FORD(i,a,b) for(int i=(a),_b=(b); i>=_b; i--)
#define REP(i,a) for(int i=0,_a=(a); i<_a; i++)
#define EACH(it,a) for(__typeof(a.begin()) it = a.begin(); it != a.end(); ++it)

#define DEBUG(x) { cout << #x << " = "; cout << (x) << endl; }
#define PR(a,n) { cout << #a << " = "; FOR(_,1,n) cout << a[_] << ' '; cout << endl; }
#define PR0(a,n) { cout << #a << " = "; REP(_,n) cout << a[_] << ' '; cout << endl; }

#define sqr(x) ((x) * (x))
#define ll long long
#define SZ(X) ((int) ((X).size()))
using namespace std;

const int MN = 100111;

int n;
string a[MN];
string has, need;

int main() {
    ios :: sync_with_stdio(false);
    while (cin >> n) {
        FOR(i,1,n) cin >> a[i];
        cin >> has;
        need = "";
        FOR(i,1,n) {
            need += "<3";
            need += a[i];
        }
        need += "<3";

        int j = 0;
        bool bad = false;
        REP(i,SZ(need)) {
            char c = need[i];
            while (j < SZ(has) && has[j] != c) {
                ++j;
            }
            if (j == SZ(has) || has[j] != c) {
                bad = true;
                cout << "no" << endl;
                break;
            }
            ++j;
        }
        if (!bad) {
            cout << "yes" << endl;
        }
    }
}