Description

The school is holding an award ceremony where $n$ students received the Literature Excellence Award and $m$ students received the Sports Excellence Award. Given the student IDs of both award winners, where each student has a unique ID, please help count the list of students who received both awards (achieved excellence in both literature and sports).

Input Format

First line contains two integers $n$ and $m$ ($1 \le n, m \le 10^5$), representing the number of Literature Excellence Award winners and Sports Excellence Award winners respectively.
Second line contains $n$ distinct integers, representing the IDs of students who won the Literature Excellence Award.
Third line contains $m$ distinct integers, representing the IDs of students who won the Sports Excellence Award.
All IDs are positive integers not exceeding $10^9$.

Output Format

Output one line containing space-separated integers representing the IDs of students who won both awards, in the order they appear in the Literature Excellence Award list.

Sample

4 4
5 1 7 3
2 3 4 1

1 3