public static void Main(string[] args)
double days, Distance = 10, FinalDistance = 0;
Console.WriteLine("Введите количество дней ");
days = Convert.ToInt32(Console.ReadLine());
for (int i = 1; i < days; i++){
Distance += Distance * 0.1;
FinalDistance += Distance;
Console.WriteLine(FinalDistance);
Console.WriteLine("Пробежал: {0}км", FinalDistance);