#include <bits/stdc++.h>
#include "horses.h"
using namespace std;
const int mod = 1e9 + 7;
int nn;
vector <int> a(1005), b(1005);
int init(int n, int x[], int y[]) {
nn = n;
for (int i = 0; i < n; i++) {
a[i] = x[i];
b[i] = y[i];
}
long long idx = 0, xx = 1, yy = 0;
for (int i = 0; i < nn; i++) {
xx *= a[i];
if (xx * b[i] >= yy) {
yy = b[i];
idx = i;
xx = 1;
}
}
int ans = b[idx];
for (int i = 0; i <= idx; i++) {
ans *= a[i];
ans %= mod;
}
return ans;
}
int updateX(int pos, int val) {
a[pos] = val;
long long idx = 0, xx = 1, yy = 0;
for (int i = 0; i < nn; i++) {
xx *= a[i];
if (xx * b[i] >= yy) {
yy = b[i];
idx = i;
xx = 1;
}
}
int ans = b[idx];
for (int i = 0; i <= idx; i++) {
ans *= a[i];
ans %= mod;
}
return ans;
}
int updateY(int pos, int val) {
b[pos] = val;
long long idx = 0, xx = 1, yy = 0;
for (int i = 0; i < nn; i++) {
xx *= a[i];
if (xx * b[i] >= yy) {
yy = b[i];
idx = i;
xx = 1;
}
}
int ans = b[idx];
for (int i = 0; i <= idx; i++) {
ans *= a[i];
ans %= mod;
}
return ans;
}
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