C111113331333132322331333133313331311233132212111133131133132313331311113213121   >>    C11111333133313232233133313331333131123313221211113313113313231333131111321312   <<    C111113331333132322331333133313331311233132212111133131133132313331311113213123   >>      C111113331333132322331333133313331311233132212111133131133132313331311113213122   >>