C11111333133313232233133313331333133313331311331333133313231333131111231   >>    C1111133313331323223313331333133313331333131133133313331323133313111123   <<    C11111333133313232233133313331333133313331311331333133313231333131111233   >>      C11111333133313232233133313331333133313331311331333133313231333131111232   >>