C11111333133313232233133313331333131133132313331322121111121311331333132231231   >>    C1111133313331323223313331333133313113313231333132212111112131133133313223123   <<    C11111333133313232233133313331333131133132313331322121111121311331333132231233   >>      C11111333133313232233133313331333131133132313331322121111121311331333132231232   >>