Write a program that, given an integer number i and a sequence of natural numbers x1, …, xn, prints xi.
Input
Input begins with an integer number i, followed by the sequence x1, …, xn ended with −1.
Output
If the position i is correct, print the content of i as it is shown in the examples. Otherwise, print “Incorrect position.”.
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.