# coding: utf-8
# Your code here!
x,y = input().split()
x,y = int(x),int(y)

def keisan(x,y):
    x_amari = x%2
    y_amari = y%2
    print(x,y,x_amari,y_amari)
    if x==0 or y==0:
        return "Yes"
    elif x_amari==1 and y_amari==1:
        return "No"
    elif x_amari==1:
        return keisan(x-1,int(y/2))
    elif y_amari==1:
        return keisan(int(x/2),y-1)
    else:
        return keisan(x-1,int(y/2)) or keisan(int(x/2),y-1)

print(keisan(x,y))