#include "horses.h"
#include <bits/stdc++.h>
#define MIN -1
#define MAX 1000000007
#define all(a) a.begin (), a.end ()
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define mem(a, c) memset(a, c, sizeof(a))
using namespace std;
typedef vector <int> vi;
typedef long long int ll;
typedef pair <int, int> ii;
typedef vector <ll> vll;
int n;
ll lol=MAX;
vll vx, vy;
int solve(vll vx, vll vy, int n){
ll acum=1;
ll maxi=MIN;
for(int i=0;i<n;i++){
acum*=vx[i];
acum=acum%lol;
ll aux=(acum*vy[i])%lol;
maxi=max(maxi, aux);
}
return int(maxi);
}
int init(int n, int x[], int y[]) {
for(int i=0;i<n;i++){
vx.pb(ll(x[i]));
vy.pb(ll(y[i]));
}
return solve(vx, vy, n);
}
int updateX(int pos, int val) {
vx[pos]=ll(val);
return solve(vx, vy, n);
}
int updateY(int pos, int val) {
vy[pos]=ll(val);
return solve(vx, vy, n);
}
/*
static char _buffer[1024];
static int _currentChar = 0;
static int _charsNumber = 0;
static FILE *_inputFile, *_outputFile;
static inline int _read() {
if (_charsNumber < 0) {
exit(1);
}
if (!_charsNumber || _currentChar == _charsNumber) {
_charsNumber = (int)fread(_buffer, sizeof(_buffer[0]), sizeof(_buffer), _inputFile);
_currentChar = 0;
}
if (_charsNumber <= 0) {
return -1;
}
return _buffer[_currentChar++];
}
static inline int _readInt() {
int c, x, s;
c = _read();
while (c <= 32) c = _read();
x = 0;
s = 1;
if (c == '-') {
s = -1;
c = _read();
}
while (c > 32) {
x *= 10;
x += c - '0';
c = _read();
}
if (s < 0) x = -x;
return x;
}
int main() {
_inputFile = fopen("horses.in", "rb");
_outputFile = fopen("horses.out", "w");
int N; N = _readInt();
int *X = (int*)malloc(sizeof(int)*(unsigned int)N);
int *Y = (int*)malloc(sizeof(int)*(unsigned int)N);
for (int i = 0; i < N; i++) {
X[i] = _readInt();
}
for (int i = 0; i < N; i++) {
Y[i] = _readInt();
}
int n;
cin>>n;
for(int i=0;i<n;i++){
int x;
cin>>x;
X[i]=x;
}
for(int i=0;i<n;i++){
int x;
cin>>x;
Y[i]=x;
}
fprintf(_outputFile,"%d\n",init(n,X,Y));
cout<<init(n, X, Y)<<endl;
int M; M = _readInt();
for (int i = 0; i < M; i++) {
int type; type = _readInt();
int pos; pos = _readInt();
int val; val = _readInt();
if (type == 1) {
fprintf(_outputFile,"%d\n",updateX(pos,val));
} else if (type == 2) {
fprintf(_outputFile,"%d\n",updateY(pos,val));
}
}
return 0;
}
*/
