( 9276 )
↓
Ĩ 1) 7 , 6 , () , 6 (12) 2) (1 , )*6 (18) 3) (2 , )*6 (24) 4) (3 , )*6 (30) 5) (4 , )*6 (36) 6-8) (36) 9) (4 , )*6 (30) 10) ...