import math
def isThree(i):
    buff = i
    while buff > 1:
        if math.floor(buff % 10) == 3:
            return True
        buff = math.floor(buff / 10)
    return False

a, b = input().split(" ")
a = int(a)
b = int(b)
for i in range(a, b):
    if i % 3 == 0:
        print(i)
        continue
    elif isThree(i):
        print(i)
        continue