namespace Choreography
{
    class Choreography
    {
        static void Main(string[] args)
        {
            double numSteps = double.Parse(Console.ReadLine());
            double dancers = double.Parse(Console.ReadLine());
            double daysLearning = double.Parse(Console.ReadLine());
            double stepsDaily = Math.Ceiling(1 * 100 / daysLearning);
            double stepPercentagePerDancer = stepsDaily / dancers;
            if (stepPercentagePerDancer <= 13)
            {
                Console.WriteLine($"Yes, they will succeed in that goal! {stepPercentagePerDancer:f2}%.");
            }
            else
            {
                Console.WriteLine($"No, they will not succeed in that goal! {stepPercentagePerDancer:f2} % steps to be learned per day.");
            }
        }
    }
}

Прегледах и други решения, но не откривам къде е грешката. Резултат в judge 70/100