result_list=[]
A, B = map(int, input().split())
if 1<=A<=B<=2000000000 and 0<=(B-A)<100:
    for i in range(A, B+1):
        if i%3==0 or '3' in str(i):
            result_list.append(i)
    print('\n'.join(map(str, result_list)))
else:
    print('error')