#include <map>
#include <set>
#include <cmath>
#include <stack>
#include <deque>
#include <queue>
#include <bitset>
#include <string>
#include <chrono>
#include <vector>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <fstream>
#include <iostream>
#include <algorithm>
using namespace std;
#define debai
#define endl "\n"
#define NAME(x) #x
#define ll long long
//#define int long long
#define FILE(x) NAME(x)
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x >> i) & 1))
void input() {
}
void solve() {
}
void output() {
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(nullptr);
if (fopen(FILE(debai) ".inp", "r")) {
freopen(FILE(debai) ".inp", "r", stdin);
freopen(FILE(debai) ".out", "w", stdout);
}
input();
solve();
output();
return 0;
}
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