#include <bits/stdc++.h>

using namespace std;

const int N = 105;

int n, m;
int x[N], y[N];
int p[N * 2], q[N * 2];

inline int read(int &x){
    x = 0;  char ch = getchar();
    while(ch < '0' || ch > '9') ch = getchar();
    while(ch >= '0' && ch <= '9') x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
    return x ;
}

int main(){
    read(n);
    for(int i = 1; i <= n; i++) read(x[i]),p[x[i]] ++;
    read(m);
    for(int i = 1; i <= m; i++) read(y[i]),q[y[i]]++;

  //  for(int i = 1; i <= n; i++) printf("%d ",x[i]); puts("");
  //  for(int i = 1; i <= m; i++) printf("%d ",y[i]); puts("");

    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++){
            if(!p[x[i] + y[j]] && !q[x[i] + y[j]]){
                printf("%d %d\n",x[i], y[j]);
                return 0;
            }
        }
    }

    return 0;
}