D23112313233313223313132322331323132313132313133313231333132312221   >>    D2311231323331322331313232233132313231313231313331323133313231222   <<    D23112313233313223313132322331323132313132313133313231333132312223   >>      D23112313233313223313132322331323132313132313133313231333132312222   >>