In this task, you need to count the number of words in a sentence that end with the given letter. Answer with numbers and not words.

Input: Consider Input: Sentence: 'a woman playing with an interactive gaming unit'. How many words end with the letter 'n' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'there is a man that is laying on the floor in the bathroom'. How many words end with the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a brown donut on some white paper on a red counter'. How many words end with the letter 'r' in the sentence.


Output: 2