mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    H, W = map(int, input().split())
    h1, w1 = map(int, input().split())
    h2, w2 = map(int, input().split())
    if (h1+w1)%2 != (h2+w2)%2:
        print("Yes")
    else:
        if h1 == h2:
            if abs(w1 - w2) == 1:
                print("Yes")
            else:
                print("No")
        elif w1 == w2:
            if abs(h1 - h2) == 1:
                print("Yes")
            else:
                print("No")
        else:
            print("No")


if __name__ == '__main__':
    main()