Find the middle element of the given linked list

Given a linked list with an odd number of items, you are asked to find the middle element and print its value.

Input

The input is read automatically. You don’t need to do anything.

Output

The program should print the value of the middle element of the given linked list.

Examples

Input
Output
5 4 2 9 8 -4
9
Β 

Constraints

Time limit: 2 seconds

Memory limit: 512 MB

Output limit: 1 MB

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