struct TwoIntNums
{
    int n1;
    int n2;
};

TwoIntNums SquarePerimArea(int A)
{
    // Perimeter = 4 * A
    // Area = A * A
    TwoIntNums result;
    result.n1 = 4 * A;          // perimeter
    result.n2 = A * A;          // area
    return result;
}