using System;

public class Program

{

    public static void Main()

    {

    Console.WriteLine("Ingrese el valor de a: ");

    int a = Convert.ToInt32(Console.ReadLine());

    Console.WriteLine("Ingrese el valor de b: ");

    int b = Convert.ToInt32(Console.ReadLine());

    Console.WriteLine("Ingrese el valor de c: ");

    int c = Convert.ToInt32(Console.ReadLine());

    int d = a+b/2-(7*c-5);

    Console.WriteLine("d="+d);

    int e =2*a+c%2;

    Console.WriteLine("e="+e);

    int f=b/c-5+a%3;

    Console.WriteLine("f="+f);

    }

}