default_code.cpp

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <cctype>

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <string>
#include <sstream>
#include <set>
#include <map>

using namespace std;

#define rep(i,a,n) for(int i=a;i<n;i++)
#define rrep(i,a,n) for(int i=n-1;i>=a;i--)
#define pb push_back
#define rb pop_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define sz(x) ((int)(x).size())

typedef vector<int> VI;
typedef long long ll;
typedef pair<int,int> PII;

const ll mod = 1000000007;