D21221323131123313112211231333132322331333132231333131131233131   >>    D2122132313112331311221123133313232233133313223133313113123313   <<    D21221323131123313112211231333132322331333132231333131131233133   >>      D21221323131123313112211231333132322331333132231333131131233132   >>