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

Input: Consider Input: Sentence: 'two bigger elephants standing with a small elephant'. Find frequency of the letter 't'

Output: 5


Input: Consider Input: Sentence: 'the child is waving a small flag as she stands near two women'. Find frequency of the letter 'g'

Output: 2


Input: Consider Input: Sentence: 'the plate has a sandwich with many large french fries'. Find frequency of the letter 'd'


Output: 1