05.GameOfIntervals

int plays=int.Parse(Console.ReadLine());
double point = 0;
double toTenPercentsAmount = 0;
double toTwentyPercents = 0;
double totwetyNine = 0;
double toThirtyNicePecn = 0;
double tofifty = 0;
double toHundered = 0;
double invalidNum = 0;

for (int i = 0; i < plays; i++)
{
    int pointsScored=int.Parse((Console.ReadLine()));
    if (pointsScored >= 0 && pointsScored <= 9)
    {
        point += pointsScored * 0.2;
        toTenPercentsAmount++;
    }
    else if (pointsScored >= 10 && pointsScored <= 19)
    {
        point += pointsScored * 0.3;
        toTwentyPercents++;
    }
    else if (pointsScored >= 20 && pointsScored <= 29)
    {
        point += pointsScored * 0.4;
        totwetyNine++;
    }
    else if (pointsScored >= 30 && pointsScored <= 39)
    {
        point += 50;
        toThirtyNicePecn++;
    }
    else if (pointsScored >= 40 && pointsScored <= 50)
    {
        point += 100;
        toHundered++;
    }
    else
    {
        invalidNum++;
        point /= 2;

    }

}

double toTenPercents = (double)toTenPercentsAmount / plays * 100;
double tonineteen=(double)toTwentyPercents / plays * 100;
double twentyNine=(double)totwetyNine / plays * 100;
double thirtynine=(double)toThirtyNicePecn / plays * 100;
double toHundredPercents = (double)toHundered / plays * 100;
double invalidPercents = (double)invalidNum / plays * 100;
Console.WriteLine($"{point:f2}");
Console.WriteLine($"From 0 to 9: {toTenPercents:F2}%");
Console.WriteLine($"From 10 to 19: {tonineteen:f2}%");
Console.WriteLine($"From 20 to 29: {twentyNine:f2}%");
Console.WriteLine($"From 30 to 39: {thirtynine:f2}%");
Console.WriteLine($"From 40 to 50: {toHundredPercents:f2}%");
Console.WriteLine($"Invalid numbers: {invalidPercents:F2}%");