Savings

using System;

namespace Savings
{
    class Program
    {
        static void Main(string[] args)
        {
            double salary = double.Parse(Console.ReadLine());
            int months = int.Parse(Console.ReadLine());
            double minimalCosts = double.Parse(Console.ReadLine());

            double monthlySavings = salary * 0.70 - minimalCosts;

            Console.WriteLine($"She can save {monthlySavings / salary * 100:f2}%\n{monthlySavings * months:f2}");
        }
    }
}