I-th (2) P27411

Statement

Write a program that, given an integer number $i$ and a sequence of natural numbers $x_1, \dots, x_n$ , prints $x_i$ .

Input

Input begins with an integer number $i$ , followed by the sequence $x_1, \dots, x_n$ ended with $-1$ .

If the position $i$ is correct, print the content of $i$ as it is shown in the examples. Otherwise, print “Incorrect position.”.

Public test cases

Input

5
1 3 5 7 9 0 2 4 6 8 -1

Output

At the position 5 there is a(n) 9.

Input

7
16 8 4 2 -1

Output

Incorrect position.

Input

-4
1 2 3 4 -1

Output

Incorrect position.

Information