# at_first Given a string, return a string length 2 made of its first 2 chars. If the string length is less than 2, use '@' for the missing chars. This exercise was taken from [codingbat.com](https://codingbat.com/prob/p139076) and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java. ### Test 1 **Input:** ``` 'hello' ``` **Output:** ``` 'he' ``` ### Test 2 **Input:** ``` 'hi' ``` **Output:** ``` 'hi' ``` ### Test 3 **Input:** ``` 'h' ``` **Output:** ``` 'h@' ``` ### Test 4 **Input:** ``` '' ``` **Output:** ``` '@@' ``` ### Test 5 **Input:** ``` 'kitten' ``` **Output:** ``` 'ki' ``` ### Test 6 **Input:** ``` 'java' ``` **Output:** ``` 'ja' ``` ### Test 7 **Input:** ``` 'j' ``` **Output:** ``` 'j@' ```