first = input()
split_first  = first.split()

A = int(split_first[0])
B = int(split_first[1])

for i in range( A, B+1):
    if( i%10 == 3) or ((i >= 30) and (i<=39)):
        print(i)
    else:
        if(i%3 == 0):
            print(i)