#include<iostream>
#include<math.h>
#include<iomanip>
#include <string>
#include<algorithm>
using namespace std;
void fast()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
}
void n (long long A[10005], long long B[10005],int N) {
for (int i = 0;i < N;i++) {
cout << B[i] << " ";
}
for (int i = 0;i < N;i++) {
cout << A[i] << " ";
}
}
int main()
{
fast();
int N;
cin >> N;
long long A[10005];
long long B[10005];
for (int i = 0;i < N;i++) {
cin >> A[i];
}
for (int i = 0;i < N;i++) {
cin >> B[i];
}
n(A, B, N);
return 0;
}
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