In this task, you need to count the number of times the given letter appears in the given sentence.

Input: Consider Input: Sentence: 'the bathroom is in need of remodel'. Find frequency of the letter 'e'

Output: 5


Input: Consider Input: Sentence: 'the man is holding a plastic sled with snow in it next to a child'. Find frequency of the letter 'g'

Output: 1


Input: Consider Input: Sentence: 'a small white plane sitting on top of the ocean'. Find frequency of the letter 'e'


Output: 4