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2014-08-03T11:12:02+03:00
A+b+c=92
a+b=55

c=92-55
c=37

b+c=43
b=43-37
b=6

a+b=55
a=55-6
a=49
2014-08-03T11:30:56+03:00
A+b+c=92
A+b=55
C=92-55=37

b+c=43
b+37=43
b=43-37=6

a+b=55
a+6=55
a=55-6=49
49+6+37=55+37=92
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