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2(a+b+c)=2*57
2a+2b+2c=114
2a+b+2c=73
(2a+2b+2c)-(2a+b+2c)=114-73
b=41
(a+b+c)-b=57-41
a+c=16
(a+c)(5a+2b+5c)
a+c=16
5a+5c=5(a+c)=5*16=80
2b=41*2=82
16*(80+82)=16*162=2592