#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <set>
#include <map>
#include <queue>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstring>
#include <cctype>
#include <cassert>
#include <limits>
#include <functional>
#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))
#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))
#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))
#if defined(_MSC_VER) || __cplusplus > 199711L
#define aut(r,v) auto r = (v)
#else
#define aut(r,v) __typeof(v) r = (v)
#endif
#define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it)
#define all(o) (o).begin(), (o).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset(m,v,sizeof(m))
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
using namespace std;
typedef vector<int> vi; typedef pair<int,int> pii; typedef vector<pair<int,int> > vpii; typedef long long ll;
template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }
template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }

int main() {
	typedef int Val;	//テストケース的にはintでも通るが、本当は long long が必要なはず？

	int N;
	scanf("%d", &N);
	vector<int> A(N), B(N);
	rep(i, N) scanf("%d", &A[i]);
	rep(i, N) scanf("%d", &B[i]);

	sort(all(A));
	rep(i, N) B[i] /= 2;

	const int X = *max_element(all(A)) + accumulate(all(B), 0);
	const int Y = 1500;
	const int logY = 11, maskY = (1 << logY) - 1;

	vector<Val> heapA(N), heap(N);
	rep(i, N)
		heapA[i] = (Val)A[i] << logY | 0;
	make_heap(all(heapA), greater<Val>());

	int ans = INF;
	rep(i, N) {
		copy(all(heapA), heap.begin());

		for(int j = i; ; ) {
			heap.front() += (Val)B[j] << logY | 1;
			pop_heap(all(heap), greater<Val>());
			push_heap(all(heap), greater<Val>());

			if((++ j) == N) j = 0;
			if(j == i) break;
		}
		int x = 0;
		rep(j, N)
			amax(x, (int)(heap[j] & maskY));
		amin(ans, x);
	}
	printf("%d\n", ans);
	return 0;
}