#include<stdio.h>
#include<stdlib.h>
int main(){
    int n1,n2;
    scanf("%d",&n1);
    if(n1<0){
        printf("Invalid input");
        return 0;
    }
    int arr1[n1];
    for(int i=0;i<n1;i++){
        scanf("%d",&arr1[i]);
        
    }
    scanf("%d",&n2);
    if(n2<0){
        printf("Invalid input");
        return 0;
    }
    int arr2[n2];
    for(int i=0;i<n2;i++){
        scanf("%d",&arr2[i]);
    }
    int ound=0;
    for(i=0;i<n1;i++){
        for(int j=0;j<n2;j++){
            if(arr[i]==arr2[j]){
                printf("%d",&arr[i]);
                found=1;
                break;
            }
        }
        if(found)
        break;
    }
    if(!found){
        printf("The two lists do not intersect");
    }
    return 0;
}