def isContain(goal,s):
    ans = 'NO'
    for v in goal:
        if v not in s:
            ans = 'NO'
    return ans

n = int(input())
xy1 = []
xy2 = []
goal = [[2, 8], [3, 9], [7, 9]]

for i in range(n):
    xi1, yi1, xi2, yi2 = map(int, input().split())
    xy1.append([xi1, yi1])
    xy2.append([xi2, yi2])

ans = 'NO'

s = [xy1[i] for i in range(n)]
s.sort()
ans = isContain(goal, s)

for i in range(n):
    s[s.index(xy1[i])] = xy2[i]
    s.sort()
    ans = isContain(goal, s)
    if ans == 'YES':
        break
print(ans)