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Question
Difficulty Level:

Hard

MCQ

Suppose a,b,ca, b, c are positive integers such that
a+b+c=23a+b+c=23
and
gcd(a,b)+gcd(b,c)+gcd(c,a)=9{gcd}(a, b)+{gcd}(b, c)+{gcd}(c, a)=9
What is the sum of all possible distinct values of a2+b2+c2a^{2}+b^{2}+c^{2} ?

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