using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter text");

string a = Console.ReadLine();

Console.WriteLine("Enter searching thing");

string b= Console.ReadLine();

int c = 0;

int d = a.IndexOf(b);

​

    while(d!=1)

    {

        c++;

    d=a.IndexOf(b,d+1);

    }

​

Console.WriteLine("{0}", c);

    }

}