D231123313223313132313233313131323223313232113313231312112323131   >>    D23112331322331313231323331313132322331323211331323131211232313   <<    D231123313223313132313233313131323223313232113313231312112323133   >>      D231123313223313132313233313131323223313232113313231312112323132   >>