D233313133313221323132322331311211331323331333132313331311331322123121   >>    D23331313331322132313232233131121133132333133313231333131133132212312   <<    D233313133313221323132322331311211331323331333132313331311331322123123   >>      D233313133313221323132322331311211331323331333132313331311331322123122   >>