#include "bits/stdc++.h"
// #include "grader.cpp"
#include "worldmap.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
#define mm make_pair
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
vector<vector<int>> create_map(int n, int m, vector<int> A, vector<int> B) {
vector<vector<int>> ans(n, vector<int> (n));
for(int j = 0; j < n; ++j)
for(int i = 0; i < n; ++i)
ans[i][j]=j;
return ans;
}
