// editor2
#include<stdio.h>
void findIntersection (int *arr1, int n,int *arr2, int m){
    if(n<=0 || m<=0){
        printf("Invalid Input\n");
        return;
    }
    int found_common = 0;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(*(arr1 + i) == *(arr2 + j)){
                printf("%d ",*(arr1 + i));
                found_common = 1;
                break;
            }
        }
    }
    if(!found_common){
        printf("No common elements\n");
    }
    printf("\n");
}
int main(){
    int n,m;
    scanf("%d", &n);
    int arr1[n];
    for(int i = 0; i < n; i++){
        scanf("%d", &arr1[i]);
    }
    findIntersection(arr1, n, arr2, m);
    return 0;
}