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

Input: Consider Input: Sentence: 'the skateboarder is jumping over a huge statue of a shoe'. Find frequency of the letter 'i'

Output: 2


Input: Consider Input: Sentence: 'two people in a snowy place near a wooden fence'. Find frequency of the letter 'n'

Output: 5


Input: Consider Input: Sentence: 'two women wearing jackets are on a street near each other'. Find frequency of the letter 'g'


Output: 1