D121212121213132322331323323132333131323221323133313231313233313221   >>    D12121212121313232233132332313233313132322132313331323131323331322   <<    D121212121213132322331323323132333131323221323133313231313233313223   >>      D121212121213132322331323323132333131323221323133313231313233313222   >>