class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("A:");
            double A = double.Parse(Console.ReadLine());
            Console.WriteLine("B:");
            double B = double.Parse(Console.ReadLine());
            Console.WriteLine("C:");
            double C = double.Parse(Console.ReadLine());
            SortInc3_2(ref A, ref B, ref C);
            Console.WriteLine($"\n{A}\n{B}\n{C}");
        }

        static void SortInc3(ref double A, ref double B, ref double C)
        {
            double min = Math.Min(A, Math.Min(B, C));
            double max = Math.Max(A, Math.Max(B, C));
            double mid = 0d;
            if (A != min && A != max) mid = A;
            if (B != min && B != max) mid = B;
            if (C != min && C != max) mid = C;
            A = min;
            B = mid;
            C = max;
        }

        static void SortInc3_1(ref double A, ref double B, ref double C)
        {
            List<double> list = new List<double>();
            list.Add(A);
            list.Add(B);
            list.Add(C);
            list.Sort();
            A = list[0];
            B = list[1];
            C = list[2];
        }

        static void SortInc3_2(ref double A, ref double B, ref double C)
        {
            double[] arr = new double[3];
            arr[0] = A;
            arr[1] = B;
            arr[2] = C;
            Array.Sort(arr);
            A = arr[0];
            B = arr[1];
            C = arr[2];
        }
    }