teamplate

/* Author : Nguyen Ngoc Hung, Ngo Gia Tu high school */

/*
#pragma GCC optimize("Ofast")
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
*/

#include <bits/stdc++.h>

using namespace std;
namespace FastInput{
	template<typename Ty>
	Reimu read(Ty &x) {
		x = 0;
		int f = 0;
		char c = getchar();
		for (; !isdigit(c); c = getchar()) f |= c == '-';
		for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + (c ^ 48);
		if (f) x = -x;
	}

	template<>
	Reimu read(double &x) {
		x = 0;
		int f = 0;
		char c = getchar();
		for (; !isdigit(c); c = getchar()) f |= c == '-';
		for (; isdigit(c); c = getchar()) x = x * 10 + (c ^ 48);
		if (c == '.') {
			double e = 1;
			for (c = getchar(); isdigit(c); c = getchar()) x += (c ^ 48) * (e *= .1);
		}
		if (f) x = -x;
	}

	template<>
	Reimu read(char &c) {
		do c = getchar(); while (!isgraph(c));
	}

	template<>
	Reimu read(string &s) {
		s = "";
		char c = getchar();
		while (!isgraph(c)) c = getchar();
		for (; isgraph(c); c = getchar()) s += c;
	}

	template<typename Ty, typename...Args>
	Reimu read(Ty &x, Args &...args) {
		read(x);
		read(args...);
	}
}
using namespace FastInput;

#define writefile(f) freopen(f,"w",stdout)
#define readfile(f) freopen(f,"r",stdin)
#define reset(x,val) memset((x),(val),sizeof(x))
#define fastIO ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define bit(X,i) (((X)>>(i))&1ll)
#define MASK(i) (1ll<<(i))
#define pii pair<int,int>
#define ull unsigned long long
#define ll long long
#define ld long double
#define fi first
#define se second
#define mp make_pair
#define all(x) x.begin(),x.end()
#define rall(x) (x).rbegin(),(x).rend()
#define sz(x) (int)(x).size()
#define lcm(x,y) (long long)(x*y)/__gcd(x,y)
#define endl "\n"
#define on(i,m) (m|=(1LL<<i))
#define off(i,m) (m&=~(1LL<<i))
#define builtin_popcount __builtin_popcountll
#define Times cerr << "\nTime: " <<clock()/(double)1000 << " sec"
#define show(x) cerr << "Line " << __LINE__ << ": " << #x << " = " << (x) << endl
#define __unique(a) sort(a.begin(),a.end()),a.resize(unique(a.begin(),a.end())-a.begin())

const int maxn = (int)1e5+1;
const int MOD = (int)1e9+7;
const int oo = (int)1e9+7;
const int base = (int)311;
const double PI = acos(-1);

int idx[] = {-1,0,1,0};
int idy[] = {0,1,0,-1};

int main(int argc, char** argv){
    //fastIO;
    int n;
    read(n);
    return 0;
}