N = int(input())    #100円玉数
M = int(input())    #10円玉数

if N%2 == 0:
    if M%2 == 0:
        ans = "Yes"
    else:
        ans = "No"
else:
    if (M-10)%2 == 0:
        ans = "Yes"
    else:
        ans = "No"

print(ans)