In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Input: Consider Input: Sentence1: Hal hadn't considered nutrition in his first 20 years. Sentence2: On his 26th birthday he began to be especially concerned. Sentence3: His gut was obvious, but he knew action had to be taken. Sentence4: He couldn't stay lazy, so he exercised more and maintained his diet. Sentence5: This combination made him and others feel inspired that Spring.

Output: Hal, Others


Input: Consider Input: Sentence1: Ana needed gas in her car. Sentence2: But the prices in her town were so high! Sentence3: She took a drive out the the reservation. Sentence4: There, gas was almost a dollar cheaper. Sentence5: Ana filled her tank at the reservation!

Output: Ana


Input: Consider Input: Sentence1: I spent an entire week eating nothing but pizza. Sentence2: Soon, my stomach started hurting. Sentence3: I did not want to give up the pizza. Sentence4: My friend decided to come over and cook for me. Sentence5: The food was so delicious, that I gave up pizza for good.


Output: I (myself), Friend


