a_{11}  a_{12} 
a_{21}  a_{22} 
a_{11}  a_{12}  a_{13} 
a_{21}  a_{22}  a_{23} 
a_{31}  a_{32}  a_{33} 
a_{11}×
a_{22}×
a_{33}


  a_{21}× a_{12}× a_{33} 
a_{31}× a_{12}× a_{23}  
  a_{11}× a_{32}× a_{23} 
a_{21}× a_{32}× a_{13}  
  a_{31}× a_{22}× a_{13} 
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