#include <bits/stdc++.h>
using namespace std;
int main()
{
int n, m, i, s;
cin >> n;
int A[n];
for(i = 0; i < n; i++) {
cin >> A[i];
}
cin >> m;
int B[m];
for(i = 0; i < m; i++) {
cin >> B[i];
}
sort(A,A+n);
sort(B,B+m);
cout << A[n-1] << ' ' << B[m-1] << endl;
return 0;
}
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