m,n = input().split() m,n = int(m),int(n) #m,n = map(int,input().split) f = 1 for x in range(1,m): #for y in range(x,m): y = m - x if x<=y and x*y == n: #print(x,y,m,n) f = 0 if f==1: print("No") else: print("Yes")