S = "" c = 0 b = 0 for i in range(int(input())): q = input() if q.startswith("1"): S += q[2] if q[2] == "(": c += 1 elif q[2] == ")": c -= 1 if c < 0: b = len(S) else: if S[-1] == "(": c -= 1 elif S[-1] == ")": c += 1 if len(S)-1 < b: b = 0 S = S[:-1] print("Yes" if c == 0 and not b and S.count("(") == S.count("|") else "No")