#617. Second largest value
You are given a list of integers. **Second largest value**. If there is no second value, print `None`. If the answer has several numbers, separate them with spaces.
### Input
The first line has n, the second line has n integers separated by spaces.
### Output
The answer.
Examples
Input
2 -11 19
Output
-11
Input
7 7 9 8 11 0 13 -9
Output
11
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.