public static void Main()
int resultVar=1, var1 = 1, var2 = 2, var3 = 3, var4 = 4, var5 =5;
resultVar += var1 * var2 + var3 % var4 / var5;
Console.WriteLine(resultVar);
Console.WriteLine("Input first number");
int num1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input second number");
int num2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input third number");
int num3 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input fourth number");
int num4 = Convert.ToInt32(Console.ReadLine());
int product = num1 + num2 + num3 + num4;
Console.WriteLine("Product is = " + product);