#include <iostream>
#include <queue>
#include <cmath>
#include <algorithm>
using namespace std;

#include <iostream>

using namespace std;
class Student{
public:

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int dp[100000];

#include <iostream>
#include <algorithm>
using namespace std;

int main()

#include <iostream>
#include <vector>
using namespace std;
vector<int>v;
int m;

#include <iostream>
#include<stack>
using namespace std;

int main()

#include <iostream>

using namespace std;

int main()

{
status: 'Success',
method: 'server',
maindata: '8595b30e9eeede5d393991fc6b1e3b299391e80465a289225bbff8f41d922a3a639539271b45b1dea6b24a769adee3b13b8028394602728edc0287fc8d11b67f8b5b826a7a4ed2197a971d821634e956ecf8a5362ff55c47944faa9a8ba98b339d01405fa864f721051f516e8b578a1a5b436c523ed8cbea23acd666ee7f926f',
otherdata: [

#include<stdio.h>
int main()
{
int x,y;
scanf("%d %d",&x,&y);

#include <iostream>
using namespace std;
int main() {
int n, m;
cin >> n >> m;