A,B = map(int,input().split())
def nabeatsu(n,x):
        if (x//(10**n))%10-3 == 0 or x%3 == 0:
            return True

for i in range(A,B+1):
    for k in range(0,10):
        if nabeatsu(k,i) == True:
            print(i)
            break