D23112331322331313231323223313133112323223313221323132313232212111   >>    D2311233132233131323132322331313311232322331322132313231323221211   <<    D23112331322331313231323223313133112323223313221323132313232212113   >>      D23112331322331313231323223313133112323223313221323132313232212112   >>