Letter Count

Have the function LetterCount(str) take the str parameter being passed and return the first word with the greatest number of repeated letters. For example: "Today, is the greatest day ever!" should return greatest because it has 2 e's (and 2 t's) and it comes before ever which also has 2 e's. If there are no words with repeating letters return -1. Words will be separated by spaces.

Examples

Input: "Hello apple pie"
Output: Hello

Input: "No words"
Output: -1