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

Input: Consider Input: Sentence: 'a man serves the ball during a claycourt tennis match'. How many words start with the letter 'm' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'several friends are setting around a dinner table'. How many words start with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'two sheep grazing from a feeder in front of a cabin'. How many words start with the letter 'f' in the sentence.


Output: 3