# -*- coding: utf-8 -*-

if __name__ == "__main__":
    l = raw_input().split()
    count = 0
    for i in range(int(l[0]),int(l[1])+1):
        # print i
        if i%3 == 0 or '3' in str(i):
            print i
            # count = count + 1
    # print count