foo.cc: In function 'int main()':
foo.cc:10:13: error: lvalue required as left operand of assignment
   10 |         if(n==a*a*a+a=b*b*b+c*c*c)
      |            ~^~~~~~~~~
foo.cc:14:13: error: lvalue required as left operand of assignment
   14 |         if(n!=a*a*a+a=b*b*b+c*c*c)
      |            ~^~~~~~~~~

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