D23112331322331313231323223313133112323132322331312312132313231   >>    D2311233132233131323132322331313311232313232233131231213231323   <<    D23112331322331313231323223313133112323132322331312312132313233   >>      D23112331322331313231323223313133112323132322331312312132313232   >>