D23112313233313223313132322331323221323222332313231333132312111   >>    D2311231323331322331313232233132322132322233231323133313231211   <<    D23112313233313223313132322331323221323222332313231333132312113   >>      D23112313233313223313132322331323221323222332313231333132312112   >>