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: 'young lady sitting on a bicycle rickshaw talking on the phone'. How many words start with the letter 's' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a close up of a traffic light on a city street'. How many words start with the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'funny close up of a man staring cross eyed at a remote control in his mouth'. How many words start with the letter 'c' in the sentence.


Output: 3