def solve():
    ban = [[""] * 10 for _ in range(10)]
    ban[2][8] = "A"
    ban[3][9] = "B"
    ban[7][9] = "C"
    for _ in range(int(input())):
        x1, y1, x2, y2 = map(int, input().split())
        ban[x2][y2] = ban[x1][y1]
        ban[x1][y1] = ""
    print("YES" if ban[5][8] == "A" and ban[4][8] == "B" and ban[6][8] == "C" else "NO")
solve()