a,b = map(int,input().split())

for x in range(a, b+1):
    s = len(str(x))
    y = x
    if x%3 == 0:
        print(x)
        continue

    while s >= 1:
        if  y//10**(s-1) != 3:
            y -= (y//10**(s-1))*(10**(s-1))
            s -= 1
        else:
            print(x)
            break