C11111333133313232233133313331333131133132313331333132313221323121   >>    C1111133313331323223313331333133313113313231333133313231322132312   <<    C11111333133313232233133313331333131133132313331333132313221323123   >>      C11111333133313232233133313331333131133132313331333132313221323122   >>