D1212132333132233131312323131323132322331323133313113313232212331   >>    D121213233313223313131232313132313232233132313331311331323221233   <<    D1212132333132233131312323131323132322331323133313113313232212333   >>      D1212132333132233131312323131323132322331323133313113313232212332   >>