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

for i in range(a,b+1):
    if i % 3 == 0:
        print(i)    
    else:
        i2 = str(i)
        for n in range(len(i2)):
            if i2[n] == str(3):
                print(i)
                break