3 2 1 0 1 2 3
. . 30 . 3,2,1,0,1,2,3 , . , ; 3,2,1 , 1,2,3, . . , 1 3 (); 2 2; 3 1; 4 - 0; 5 1, ; 6 2; 7 3.
, , .
1, 2, 7, 8, 14, 19, 20, 23, 27, 28
- 3, 4, 9,10, 13, 16, 21, 22, 25, 26
- 5, 6, 11, 12, 15, 17, 18, 24, 29, 30.
2
.
* 100
= -------------------------
+ 1
( 40 ) ( ) (180 ).
.
- 120
- 80 120
- - 60 - 79
- 30 59
- - 30
3
?