K-th element

Array $a$ of $n$ integers and number $k$ are given. Find the $k$-th element in a sorted array $a$ (indexing starts from $1$).

Input

First line contains two integers $n$ and $k(1\le n\le 2000,1\le k\le n)$. Second line contains $n$ integers $a_i(1\le i\le n,1\le a_i\le 2000)$.

Output

Print the $k$-th element in a sorted array $а$.

Examples