int multy= Multiply(1.2, 1.5, 3.4, 7.2);
Console.WriteLine(multy);
public int Multiply(double firstN, double secondN, double thirdN, double fourthN)
int i1 = Convert.ToInt32(firstN);
int i2= Convert.ToInt32(secondN);
int i3= Convert.ToInt32(thirdN);
int i4= Convert.ToInt32(fourthN);