import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

A,B = map(int,read().split())

def test(x):
    if x % 3 == 0:
        return True
    return str(x).find('3') != -1

print('\n'.join(str(x) for x in range(A,B+1) if test(x)))