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 Rust (judge verdict: Time Limit Exceeded)

use std::io::prelude::*;
use std::io;

fn main() {
  let mut buffer = String::new();
  let stdin = io::stdin();
  let mut handle = stdin.lock();

  handle.read_line(&mut buffer).unwrap();
  let word = buffer.trim();
  let word = word.to_lowercase();

  let mut buffer = String::new();
  let mut count = 0;
  
  loop {
    buffer.clear();
    handle.read_line(&mut buffer).unwrap();
    let line = buffer.trim();
    let line = line.to_lowercase();
    if line == "END_OF_TEXT" {
      break;
    }
    
    count += line.split_whitespace()
        .filter(|s| s == &word)
        .count();
  }

  println!("{}", count);
}