D1212121221323132313232332313232233132333132312111133132333132322113221   >>    D121212122132313231323233231323223313233313231211113313233313232211322   <<    D1212121221323132313232332313232233132333132312111133132333132322113223   >>      D1212121221323132313232332313232233132333132312111133132333132322113222   >>