Second Largest

Lab Python Intermediate 20 points

Read a line of integers and print the second largest distinct value. If there isn't one, print none.

Input

One line of space-separated integers.

Output

A number or none.

Example

Input

3 1 4 4 2

Output

3
Sample input available Sample output available
Editor
Python

Hints

A set removes duplicates.

After sorting, the second largest is at index -2.

Solution explanation

Removing duplicates first makes "second largest distinct" a simple index.

Show solution
nums = sorted(set(map(int, input().split())))
print(nums[-2] if len(nums) >= 2 else "none")
Output
Answer
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