Please help with if...return..else

Question

using an if.. else .. end structure, create a function named customfunc of two scalar arguments x and y, which does the following:
if x is greater than y, return x*y
if x is less that y, return (y-x)x
if x == y (remember, when we compare, we use == instead of =) return 0

customfunc (x+101) = x;
E (y+101) = y;
E (y+101) = customfunc (x+101);
If x>y
Return x*y;
Elseif x<y
Return (y-x)*x;
Elseif x==y
Return 0;
end

Answer 1

Notice: Do not use return more than once.