m,n = map(int,input().split()) #m是它们的和，n是它们的积 flag = False #没有 No for x in range(0,m+1): for y in range(0,m+1): if x*y ==n and x+y == m : #print(x,y) True有 flag = True #print('Yes') if flag == False: print('No') else: print('Yes')