#include <stdio.h>

void findCommonElements(int *arr1, int n, int *arr2, int m){
    int found=0;
    
    for (int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            if(*(arr1+i) == *(arr2+j)){
                printf("%d ",*(arr1+i));
                found = 1;
                break;
            }
        }
    }
    if(!found){
        printf("No common elements");
    }
}

int main(){
    int N,M;
    
    scanf("%d",&N);
    if(N<=0){
        printf("Invalid Input");
        return 0;
    }
    
    int arr1[1000];
    for(int i=0;i<N;i++){
        scanf("%d",arr1+i);
    }
    
    scanf("%d", &M);
    if(M<=0){
        printf("Invalid Input");
        return 0;
    }
    
    nt arr2[1000];
    for(int i=0; i<M; i++){
        scanf("%d", arr2+i);
    }
    
    findCommonElements(arr1, N, arr2, M);
    
    return 0;
}