C11111333133313232233133313331333131133132313331333132221111211   >>    C1111133313331323223313331333133313113313231333133313222111121   <<    C11111333133313232233133313331333131133132313331333132221111213   >>      C11111333133313232233133313331333131133132313331333132221111212   >>