Problem:
Finding a Word

Write a program which reads a word W and a text T, and prints the number of word W which appears in text T

T consists of string Ti separated by space characters and newlines. Count the number of Ti which equals to W. The word and text are case insensitive.

Constraints

The length of W ≤ 10

W consists of lower case letters

The length of T in a line ≤ 1000

Input

In the first line, the word W is given. In the following lines, the text T is given separated by space characters and newlines.

"END_OF_TEXT" indicates the end of the text.

Output

Print the number of W in the text.

Sample Input

computer
Nurtures computer scientists and highly-skilled computer engineers
who will create and exploit "knowledge" for the new era.
Provides an outstanding computer environment.
END_OF_TEXT

Sample Output

3

Solution in C# (judge verdict: Wrong Answer)

using System;

namespace AOJ
{
    class Program
    {
        static void Main(string[] args)
        {
            string serch_word,sample_word="";
            int ans = 0,startindex=0;

            var read = Console.ReadLine();
            serch_word = read;
            while (true)
            {
                //??????????????????
                read = Console.ReadLine();
                if (read == "END_OF_TEXT")
                    break;
                sample_word += read+" ";

            }
            sample_word = sample_word.ToLower();

            //?????????????´¢
            while(0<=sample_word.IndexOf(serch_word,startindex))
            {
                ans++;
                startindex = sample_word.IndexOf(serch_word, startindex)+serch_word.Length;
            }

            Console.WriteLine(ans);
        }
    }
}