# plus_out Given a string and a non-empty word string, return a version of the original String where all chars have been replaced by pluses ("+"), except for appearances of the word string which are preserved unchanged. This exercise was taken from [codingbat.com](https://codingbat.com/prob/p170829) 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:** ``` '12xy34' 'xy' ``` **Output:** ``` '++xy++' ``` ### Test 2 **Input:** ``` '12xy34' '1' ``` **Output:** ``` '1+++++' ``` ### Test 3 **Input:** ``` '12xy34xyabcxy' 'xy' ``` **Output:** ``` '++xy++xy+++xy' ``` ### Test 4 **Input:** ``` 'abXYabcXYZ' 'ab' ``` **Output:** ``` 'ab++ab++++' ``` ### Test 5 **Input:** ``` 'abXYabcXYZ' 'abc' ``` **Output:** ``` '++++abc+++' ``` ### Test 6 **Input:** ``` 'abXYabcXYZ' 'XY' ``` **Output:** ``` '++XY+++XY+' ``` ### Test 7 **Input:** ``` 'abXYxyzXYZ' 'XYZ' ``` **Output:** ``` '+++++++XYZ' ``` ### Test 8 **Input:** ``` '--++ab' '++' ``` **Output:** ``` '++++++' ``` ### Test 9 **Input:** ``` 'aaxxxxbb' 'xx' ``` **Output:** ``` '++xxxx++' ``` ### Test 10 **Input:** ``` '123123' '3' ``` **Output:** ``` '++3++3' ```