C11111333133313232233133313331333131133132313331313331313311223131   >>    C1111133313331323223313331333133313113313231333131333131331122313   <<    C11111333133313232233133313331333131133132313331313331313311223133   >>      C11111333133313232233133313331333131133132313331313331313311223132   >>