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5 years ago
## nenokku
### Instructions
You are given unknown amount of operations. There are 3 types of operations, you should handle each appropriately:
1. "A word" - add the "word" into your "dictionary" of words.
2. "? word" - check if the "word" is in your "dictionary".
3. "x word" - end of operations.
Intersection of words is counted as if it is in your dictionary (see example).
Write a program that takes as arguments operations.
```console
$> ./main "? love" "? is" "A loveis" "? love" "? Who" "A Whoareyou" "? is"
NO
NO
YES
NO
YES
```