this is loop position [ 0 0 0 ] 
this is loop position [ 0 0 1 ] 
this is loop position [ 0 0 2 ] 
this is loop position [ 0 1 0 ] 
this is loop position [ 0 1 1 ] 
...........................
this is loop position [ 2 1 0 ] 
this is loop position [ 2 1 1 ] 
this is loop position [ 2 1 2 ] 
this is loop position [ 2 2 0 ] 
this is loop position [ 2 2 1 ] 
this is loop position [ 2 2 2 ] 
done