-1 (2, 6) - , , .
19170, 19907.
, .
: , , , , .
:
- 60 400;
1000+50-100; 1500+50-1002000100; 2500100; 3000100
50020; 100020
40;50;60;70 (7)
31+7-10
0,0420,0500,136
5