using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        string s = "Q~WERTYяч12смитФЫВАПРОЛДЖ!";

        foreach (char chr in s.Where(chr => !(chr >= 'a' && chr <= 'z' || chr >= 'A' && chr <= 'Z')))

        {

            Console.Write(chr);

        }

    }

}