D13231123313133313133112323223313233313231322132313331323132313232233132311211   >>    D1323112331313331313311232322331323331323132213231333132313231323223313231121   <<    D13231123313133313133112323223313233313231322132313331323132313232233132311213   >>      D13231123313133313133112323223313233313231322132313331323132313232233132311212   >>