D121212121213132322331323323132333131323221323133313231311112121   >>    D12121212121313232233132332313233313132322132313331323131111212   <<    D121212121213132322331323323132333131323221323133313231311112123   >>      D121212121213132322331323323132333131323221323133313231311112122   >>