D121213233313221323133313221323132333132333131313113313232231111   >>    D12121323331322132313331322132313233313233313131311331323223111   <<    D121213233313221323133313221323132333132333131313113313232231113   >>      D121213233313221323133313221323132333132333131313113313232231112   >>