def three(A, B):
	True_three= []
	
	for i in A:
		each= [int(x) for x in list(str(A))]
		if A%3 ==0:
			True_three.append(A)
			A += 1
		elif 3 in each:
			True_three.append(A)
			A += 1
		elif A > B:
			break
		else:
			A += 1
		
	return True_three
	
def main():
	A = int(input())
	B = int(input())
	
	result= three(A, B)
	print(result)
	
main()