try:
    import mydebug

    def dprint(*objects, sep='', end='\n'):
        print(*objects, sep, end)
except:
    def dprint(*objects, sep='', end='\n'): pass

a, b = [int(x) for x in input().split()]

for i in range(a, b+1):
    if "3" in str(i):
        print(i)
    elif i % 3 == 0:
        print(i)