..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....
\(-\)                
                   

     

continue






























back

   ..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....
\(-\) \(2 \space \space \) \(1 \space \space \)          \(1\)     
     \(5\) \(2\)               
   \(-\)               
                 

     

continue






























back

   ..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....
\(-\) \(2 \space \space \) \(1 \space \space \)          \(1\) \(2\)   
     \(5\) \(2\)               
   \(-\) \(4 \space \space \) \(2 \space \space \)               
     \(1\) \(0\) \(0\)             
     \(-\)             
                 

     

continue






























back

   ..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....
\(-\) \(2 \space \space \) \(1 \space \space \)          \(1\) \(2\) \(4\)
     \(5\) \(2\)               
   \(-\) \(4 \space \space \) \(2 \space \space \)               
     \(1\) \(0\) \(0\)             
     \(-\) \(8 \space \space \) \(4 \space \space \)             
       \(1\) \(6\) \(2\)           
     \(-\)           
                 

     

continue






























back

   ..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....   
\(-\) \(2 \space \space \) \(1 \space \space \)          \(1\) \(2\) \(4\) \(7\)
     \(5\) \(2\)                 
   \(-\) \(4 \space \space \) \(2 \space \space \)                 
     \(1\) \(0\) \(0\)               
     \(-\) \(8 \space \space \) \(4 \space \space \)               
       \(1\) \(6\) \(2\)             
     \(-\) \(1 \space \space \) \(4 \space \space \) \(7 \space \space \)             
         \(1\) \(5\) \(9\)           
       \(-\)           
                     

     

continue






























back

   ..2.. ..6.. ..2.. ..0.. ..2.. ..9.. ..2.. ..1.. .... ....   
\(-\) \(2 \space \space \) \(1 \space \space \)          \(1\) \(2\) \(4\) \(7\) \(7\)
     \(5\) \(2\)                 
   \(-\) \(4 \space \space \) \(2 \space \space \)                 
     \(1\) \(0\) \(0\)               
     \(-\) \(8 \space \space \) \(4 \space \space \)               
       \(1\) \(6\) \(2\)             
     \(-\) \(1 \space \space \) \(4 \space \space \) \(7 \space \space \)             
         \(1\) \(5\) \(9\)           
       \(-\) \(1 \space \space \) \(4 \space \space \) \(7 \space \space \)           
           \(1\) \(2\)