using System;

public class Program

{

    public static void Main()

    {

        var s1 = "1С 2П";

        var s2 = "4С";

        Console.WriteLine(s1 + " > " + s2 + " = " + StringComparer.Compare(s1, s2));

    }

    public static class StringComparer

    {

        /// <summary>

        /// Сравнить две строки с компетенциями

        /// </summary>

        /// <param name="firstString">Входная строка</param>

        /// <param name="secondString">Входная строка</param>

        /// <returns> <c>true</c> если первая строка больше чем вторая</returns>

        public static bool Compare(string firstString, string secondString)

        {

            var first = GetValues(firstString);

            var second = GetValues(secondString);

            bool equal = false;

​

            for (int i = 0; i < 3; i++)

            {

                if (first[i] > second[i]) return true;

                if (first[i] > second[i] && equal) return true;

                if (first[i] < second[i] && equal) return true;

                if (first[i] == second[i])

                {

                    equal = true;

                    continue;

                }

​

                if (first[i] < second[i]) return false;

            }

​

            return true;

        }

​

        private static int[] GetValues(string input)

        {

            var values = new int[3];

            var items = input.Split(' ');

            foreach (var item in items)

            {

                if (item.EndsWith("С")) values[2] = Int32.Parse(item.Replace("С", String.Empty));

                if (item.EndsWith("П")) values[1] = Int32.Parse(item.Replace("П", String.Empty));

                if (item.EndsWith("Э")) values[0] = Int32.Parse(item.Replace("Э", String.Empty));

            }

​

            return values;

        }

    }

}