#691. Values that appear more than 3 times
Print the values that appear more than 3 times, in increasing order. If there are none, print `None`.
### Input
The first line has n, the second line has n integers separated by spaces.
### Output
One line.
Examples
Input
8 4 5 3 2 4 5 1 5
Output
None
Input
8 0 5 4 1 3 3 1 4
Output
None
💡 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.