89 



By the first we can add to J 



456 789 12 3 =Qx J 



564 897 231 



645 978 312 



546 879 213 



654 987 321 



465 798 132 

 and 789 123 456 =Q8 J 



897231456 



978 312 564 



879 213 546 



987 321 654 



798 132 465 

 forming a group J + Q. J + Q, J of 18 = 3 • 2 . 3 = Krl 

 substitutions. 



By the latter we can add farther, 



123789456 r^QgJ 



231 897 564 



312 978 645 



213879546 



3219 86 654 



132798465 



and 789456123 zzQ^J 



897 564 231 

 978 645 312 

 879 546 213 

 987 654 321 

 798 465 132 



and 456123789 =:Q, J 



564 231 897 

 64531297S 

 546 213 879 

 654 321 987 

 465 132 798 



thus completing a grouped group of 3 ♦ 2 • 6 = K/7 substi- 

 tutions. 



c 



