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.. 4
- .1. 2. 3. 4. , 5. 6. , . 7.
1. .: , , ,
2. : , , ,
3. , :
4. ,
- : - = : : --
37..10.. = =34. =20 .. =15 .. =18 .. =10 .. =51 ..
5. . . : . --+ . = 37 + 34 = 7171 111,3= 7902,3 () . . :
5. . . := 18 + 51 = 69- . + . - . . :69 109,6 = 7562,4 ()
6. , .
6. , .
( )
() .
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