D13231212111133131323123231323223313231333131322331323221211111   >>    D1323121211113313132312323132322331323133313132233132322121111   <<    D13231212111133131323123231323223313231333131322331323221211113   >>      D13231212111133131323123231323223313231333131322331323221211112   >>