D23112313233313223313132322331323132313223313222233132322121111   >>    D2311231323331322331313232233132313231322331322223313232212111   <<    D23112313233313223313132322331323132313223313222233132322121113   >>      D23112313233313223313132322331323132313223313222233132322121112   >>