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: 'a half eaten doughnut in a persons hand'. Find frequency of the letter 'h'

Output: 3


Input: Consider Input: Sentence: 'the large green vegetation dominates the small picture'. Find frequency of the letter 't'


Output: 6