D1212121212131323131133132311233132213231323133313113313233313221131   >>    D121212121213132313113313231123313221323132313331311331323331322113   <<    D1212121212131323131133132311233132213231323133313113313233313221133   >>      D1212121212131323131133132311233132213231323133313113313233313221132   >>