#include "game.h"
#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define chkmin(a, b) a = min(a, b)
#define chkmax(a, b) a = max(a, b)
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vii;
long long gcd2(long long X, long long Y) {
long long tmp;
while (X != Y && Y != 0) {
tmp = X;
X = Y;
Y = tmp % Y;
}
return X;
}
const int MAX_N = 2005;
vvi mat;
int n, m;
void init(int R, int C) {
n = R, m = C;
mat.resize(n, vi(m));
}
void update(int p, int q, long long k) {
mat[p][q] = k;
}
long long calculate(int p, int q, int u, int v) {
ll x = 0;
for (int i = p; i <= u; i++) {
for (int j = q; j <= v; j++) {
x = gcd2(x, mat[i][j]);
}
}
return x;
}
