Count one word

Problem

A support team has a line of words taken from customer messages. Count how many times one chosen word appears.

Words are compared exactly, so Refund and refund are different.

Input: The first line holds the words separated by spaces. The second line holds the word to count.
Output: One integer: how many times the word appears (0 if it never does).
Constraints: 1 ≤ number of words ≤ 1000

Example

Input

refund late refund refund late
refund

Output

The word appears three times.

Try the problem first. Open one hint at a time.

Hint 1

Build a frequency map: each word is a key and its count is the value.

Hint 2

Use get with 0 while counting, and get with 0 again for the target.

Write your Python code, run it on the examples and submit it to hidden tests.