The Golden Middle

Time limit1sMemory limit1024 MB

Summary

Given three distinct integers, the task is to print the one that is neither the smallest nor the largest.

Level: Easy1 of 10
Topics: Implementation, Sorting
Solved: No attempts yet

Problem

Three distinct integers a, b, and c are given. Write a program middle that finds and prints a number that equals one of the given numbers but is neither the smallest nor the largest of them.

Input

The first line of standard input contains three integers separated by single spaces.

Output

Print the required number on one line of standard output.

Constraints

$0 \le a, b, c \le 10^{18}$

Examples2

Example 1
Input
```
5 16 10
```
Expected output
```
10
```
Example 2
Input
```
10000 9999 0
```
Expected output
```
9999
```