H,W = map(int,input().split())
ni,nj = map(int,input().split())
zi,zj = map(int,input().split())
if H==1 or W==1:
    print("Yes")
else:
    d = abs(ni-zi)+abs(nj-zj)
    if d%2==0:
        print("No")
    else:
        print("Yes")