D1212132333131313331323331312111133132322132313331323223313222331   >>    D121213233313131333132333131211113313232213231333132322331322233   <<    D1212132333131313331323331312111133132322132313331323223313222333   >>      D1212132333131313331323331312111133132322132313331323223313222332   >>