D13231123313133313133112323223313231333131313331323132322112211232322131   >>    D1323112331313331313311232322331323133313131333132313232211221123232213   <<    D13231123313133313133112323223313231333131313331323132322112211232322133   >>      D13231123313133313133112323223313231333131313331323132322112211232322132   >>