"""

X..
..X

"""

import sys
from sys import stdin
import math

H,W = map(int,stdin.readline().split())

x,y = map(int,stdin.readline().split())
X,Y = map(int,stdin.readline().split())


if (abs(x-X) + abs(y-Y)) % 2 == 0:
    print ("No")
else:
    print ("Yes")