Codeforces 994A. Fingerprints

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int x[15],y[15];
int main(){
    ios::sync_with_stdio(false);
    int n,m;
    cin >> n >> m;
    for(int i = 1;i <= n; ++i) cin >> x[i];
    for(int i = 1;i <= m; ++i) cin >> y[i];
    for(int i = 1;i <= n; ++i){
        for(int j = 1;j <= m; ++j){
            if(x[i] == y[j]){
                cout << x[i] << " ";
            }
        }
    }
    cout << endl;
    return 0;
}