import math

a, b = map(int, input().split())

for i in range(a, b + 1):
    if (i % 3) == 0:
        print(i)
    elif i > 12:
        k = list(str(i))
        for j in range(int(math.log10(i) + 1)):
            if k[j] == "3":
                print(i)
                break