1216C - White Sheet - CodeForces Solution

x1, y1, x2, y2 = map(int, input().split())
x3, y3, x4, y4 = map(int, input().split())
x5, y5, x6, y6 = map(int, input().split())

if x1 >= x3 and y1 >= y3 and x2 <= x4 and y2 <= y4:
    print('NO')
    exit()
elif x1 >= x3 and y1 >= y3 and x2 > x4 and y2 <= y4:
    x1 = max(x4, x1)
elif x1 < x3 and y1 >= y3 and x2 <= x4 and y2 <= y4:
    x2 = min(x3, x2)
elif x1 >= x3 and y1 < y3 and x2 <= x4 and y2 <= y4:
    y2 = min(y3, y2)
elif x1 >= x3 and y1 >= y3 and x2 <= x4 and y2 > y4:
    y1 = max(y4, y1)

if x1 >= x5 and y1 >= y5 and x2 <= x6 and y2 <= y6:
    print("NO")
else:
    print("YES")