using System;

public class Program

{

    public static void Main()

    {

        string name = "Eric";

        int weight = 70;

        int height = 169;

        float BMI = (float)weight / (height/100f * height/100f);

        Console.WriteLine(name + "'s BMI " + BMI);

    }

}

​

public class student

{

    public string name;

    public int age;

    public int height;

    public int weight;

}