Quantifying the Emotional Impact of a Love Letter

In order to help CYY, we define an emotional impact value for a love letter. The value is computed as follows:

• For each sentence in the letter (sentences are delimited by an English period .), check if it contains any of the given keywords. For each keyword present in the sentence, add 1 to the emotional impact value. If a keyword appears multiple times in the same sentence, it is counted only once. Different keywords in the same sentence contribute separately.
• The text is case-insensitive.

In mathematical notation, if a sentence S is processed and there are k keywords, then the contribution of that sentence is given by:

$$ \text{score}(S)=\sum_{i=1}^{k} \mathbb{1}_{\{\text{keyword}_i \in S\}}, $$

and the total emotional impact is the sum of the scores for all sentences.

inputFormat

The input consists of two lines:

1. The first line contains the list of unique keywords separated by spaces.
2. The second line contains the text of the love letter. Sentences in the text are delimited by an English period ..

The text is not case-sensitive.

outputFormat

Output a single integer representing the total emotional impact value computed based on the rules described above.

sample

love romance
I love you. You are my romance.

2