import sequtils,strutils
var
    N = stdin.readline.parseInt
    ban : array[10, array[10, char]]
    x,y,x2,y2 : int

ban[2][8] = 'a'
ban[3][9] = 'b'
ban[7][9] = 'c'
for n in 1..N:
    (x, y, x2, y2) = stdin.readline.split.map(parseInt)
    ban[x2][y2] = ban[x][y]
    ban[x][y] = 'z'

if ban[5][8] == 'a' and ban[4][8] == 'b' and ban[6][8] == 'c':
    echo "YES"
else:
    echo "NO"