C11111333133313232233133313331333131133131133132321123231333131133121   >>    C1111133313331323223313331333133313113313113313232112323133313113312   <<    C11111333133313232233133313331333131133131133132321123231333131133123   >>      C11111333133313232233133313331333131133131133132321123231333131133122   >>