D1212121221323132313232332313232233132313233313331313231333131331   >>    D121212122132313231323233231323223313231323331333131323133313133   <<    D1212121221323132313232332313232233132313233313331313231333131333   >>      D1212121221323132313232332313232233132313233313331313231333131332   >>