if a+b+c=0 then value of (a+b/c + b+c/a + c+a/b) (a/b+c +b/c+a +c/a+b) is ?

if a+b+c=0 then value of (a+b/c + b+c/a + c+a/b) (a/b+c +b/c+a +c/a+b) is ?

Explanation