What will be the output of the following C# code?

class maths
{
    int i;
    public maths(int ii)
    {
        ii = 12;
        int j = 12;
        int r = ii * j;
        Console.WriteLine(r);
    }
}
class maths1 : maths
{
    public maths1(int u) :base(u)
    {
        u = 13;
        int h = 13;
        Console.WriteLine(u + h);
    }
}
class maths2 : maths1
{
    public maths2(int k) :base(k)
    {
        k = 24;
        int o = 6 ;
        Console.WriteLine(k /o);
    }
}
class Program
{
    static void Main(string[] args)
    {
        maths2 t = new maths2(10);
        Console.ReadLine();
    }
}