n = int(input())
board = [[0 for _ in range(9)] for _ in range(9)]
board[1][7] += 1
board[2][8] += 2
board[6][8] += 3
for i in range(n):
    a,b,c,d = map(int,input().split())
    a,b,c,d = a-1,b-1,c-1,d-1
    board[c][d] += board[a][b]
    board[a][b] = 0
if board[4][7] == 1 and board[3][7] == 2 and board[5][7] == 3:
    print('YES')
else:
    print('NO')