D13231123313133313133112323223313231323223313331313231323133313233313113221   >>    D1323112331313331313311232322331323132322331333131323132313331323331311322   <<    D13231123313133313133112323223313231323223313331313231323133313233313113223   >>      D13231123313133313133112323223313231323223313331313231323133313233313113222   >>