D33131312312113313133313132233131333132333131323223313232212231   >>    D3313131231211331313331313223313133313233313132322331323221223   <<    D33131312312113313133313132233131333132333131323223313232212233   >>      D33131312312113313133313132233131333132333131323223313232212232   >>