
: 20 = 10. - 12 +7 2
, 153 . (144+7+2). : 12 , 24 .
1: 5, *1 , 3, , 1, 1 , 7 , * - , .
2: *7, , 3, * ,
3: *7, 1 , 3, 1 * - , 7, .
4: *7, 1, 3, 1 * , .
5: 7, *1 , 1, , 3, 1 , 7 , * - , .
6: 6, * , 3, , 7* ,
7: 8, *1 , 3, 1 , 7* - , .
8: 6, *1, 3, 1, 7 * - , .
9: 8, *1 , 3, , 1, 1 , 7 , * - , .
10: 5, * , 3, , 7* ,
11: 9, *1 , 3, 1 , 7* - , .
12: 5, *1, 3, 1, 7 * - , .
13: 7,* 2 , 1 , , 1, 2 ,1 , , 5* - , .
14=2: *7, , 3, * ,
15=3: *7, 1 , 3, 1 * - , 6, .
16=4: *7, 1, 3, 1 * , .
17: 6,* 1 , 1 , , 2, 1 ,1 , , 6* - , .
18: 8,* , 3, , 7* ,
19: 6,* 1 , 3, 1 , 7* - , .
20: 8,*1, 3, 1, 7 * , .
21: 5,* 1 , 1 , , 2, 1 ,1 , , 6* - , .
22: 9,* , 3, , 7* ,
23: 5,* 1 , 3, 1 , 7* - , .
24: 9,*1, 3, 1, 7 * , .
.
. . . , . .
.
1- (. .) . . : 1 .., 1 . ., : 1 . ., . .
2- . ., : 1 . . 1 , 1 . ., : 1 . . 1 , . .
3- . ., 1 . . , 1 . ., :1 . . , . .
2- 3- .
.
, .

, .
:
1.( ) :.,2.,*1.,3.,1.,7.*, 7.
2.: -,. 2 .
3,5,9,13,17,19,23,27.: -., .
6,10,14,20,24,28.: -.,- .
4.:. -.,. . 2 .
7,11,15,21,25,29.6.-.,. -
.
8,12,22,26.: .
16.:.-.,. 2 .
18.:.-.,. . 2 .
30. 2- .
: ( - , ).
: , .
. , ..
, ( ) , ., , . , , .