D23331313331322132313232233131121133132313231333132323213311231   >>    D2333131333132213231323223313112113313231323133313232321331123   <<    D23331313331322132313232233131121133132313231333132323213311233   >>      D23331313331322132313232233131121133132313231333132323213311232   >>