C312322331333132212111133133313331333133312121111331211111232212231   >>    C31232233133313221211113313331333133313331212111133121111123221223   <<    C312322331333132212111133133313331333133312121111331211111232212233   >>      C312322331333132212111133133313331333133312121111331211111232212232   >>