C3213322333133313113313221211113313331333132313231333131212132323111232313121   >>    C321332233313331311331322121111331333133313231323133313121213232311123231312   <<    C3213322333133313113313221211113313331333132313231333131212132323111232313123   >>      C3213322333133313113313221211113313331333132313231333131212132323111232313122   >>