D121212122132313231323233231323223313231323331333131323133313233221   >>    D12121212213231323132323323132322331323132333133313132313331323322   <<    D121212122132313231323233231323223313231323331333131323133313233223   >>      D121212122132313231323233231323223313231323331333131323133313233222   >>