D231123132333132233131323223313231323131323131333132313232221211   >>    D23112313233313223313132322331323132313132313133313231323222121   <<    D231123132333132233131323223313231323131323131333132313232221213   >>      D231123132333132233131323223313231323131323131333132313232221212   >>