D331322332321323331323223313231121133132313331333132311221123233321   >>    D33132233232132333132322331323112113313231333133313231122112323332   <<    D331322332321323331323223313231121133132313331333132311221123233323   >>      D331322332321323331323223313231121133132313331333132311221123233322   >>