using System;

public class Program

    {

        // Main Method 

        public static void Main() 

        { 

            // string type 

            String str = "Geeksfor Ge eks"; 

            String substr1 = "ff for gg Geeks Ge eks"; 

            //Convert the string into an array of words  

            string[] source = substr1.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' }, StringSplitOptions.RemoveEmptyEntries);  

            for (int i = 0 ; i < source.Length ; i++)

            {

                Console.WriteLine(str.Contains(source[i])); 

            }

​

        } 

    }