D1212121212131323131133132311233132213231323133313132322132323131   >>    D121212121213132313113313231123313221323132313331313232213232313   <<    D1212121212131323131133132311233132213231323133313132322132323133   >>      D1212121212131323131133132311233132213231323133313132322132323132   >>