D23112313233313223313132322331323132313132313133313232233132211   >>    D2311231323331322331313232233132313231313231313331323223313221   <<    D23112313233313223313132322331323132313132313133313232233132213   >>      D23112313233313223313132322331323132313132313133313232233132212   >>