Preparando MOJI

INTERCALC

2000ms 65536K

Description:

DO YOU EXPECT ME TO FIND THIS OUT?

WHAT BASE AND/XOR LANGUAGE INCLUDES string?

DON'T BYTE OF MORE THAN YOU CAN CHEW

YOU CAN ONLY DISTORT THE LARGEST OF MATHEMATICS SO FAR

SAYING "ABRACADABRA" WITHOUT A MAGIC AND WON'T DO YOU ANY GOOD

THE LAST STACK RUPTURES. ALL DIE. OH, THE EMBARRASSMENT!

I HAVE NO ARRAY AND I MUST SCREAM

ELEMENTS MAY NOT BE STORED IN WEST HYPERSPACE

Input:

The first line of input data contains a single integer n (1 ≤ n ≤ 10).

The second line of input data contains n space-separated integers ai (1 ≤ ai ≤ 11).

Output:

Output a single integer.

Sample Input:

4
2 5 3 1

Sample Output:

4

Informação

Codeforces

Provedor Codeforces

Código CF784C

Tags

*specialimplementation

Submetido 0

BOUA! 0

Taxa de BOUA's 0%

Datas 09/05/2023 09:13:46

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