D23112313233313223313132322331323132313331313223313231323131232211   >>    D2311231323331322331313232233132313231333131322331323132313123221   <<    D23112313233313223313132322331323132313331313223313231323131232213   >>      D23112313233313223313132322331323132313331313223313231323131232212   >>