#include<iostream> #include<cmath> #include<cstdio> #include<cstring> using namespace std; int main() { int i,j,A,B,t,flag = 0; int arr[201] = {}; int arr1[201] = {}; cin >> A >> B; for(i = 0; i < A;i++) cin >> arr[i]; for(i = 0; i < B;i++) cin >> arr1[i]; for(i=0;i<A-1;i++) { for(j=0;j<A-1-i;j++) { if(arr[j] > arr[j+1]) { t = arr[j]; arr[j] = arr[j+1]; arr[j+1] = t; } } } for(i=0;i<B-1;i++) { for(j=0;j<B-1-i;j++) { if(arr1[j] > arr1[j+1]) { t = arr1[j]; arr1[j] = arr1[j+1]; arr1[j+1] = t; } } } for(i=0;i<A;i++) { for(j=0;j<B;j++) { if(arr[i] == arr1[j]) { cout<<arr[i]<<" "; flag = 1; } } } if(!flag) cout<<-1<<endl; cout<<endl; return 0; }