比賽用快讀快寫模板，非bits/stdc++.h

#include<iostream>
#include<cstdio>
#include<cctype>
#include<cmath>
#include<cstdlib>
#include<cstring>
#include<string>
#include<stack>
#include<queue>
#include<algorithm>
#include<vector>
#include<set>
#include<map>
#include<iomanip>
#include<deque>
#include<list>
#include<iterator>
#define mem(x) memset(x,0,sizeof(x))
using namespace std;
typedef long long ll;
const ll maxn=1e5+10;
const ll mod=1e9+7;
const ll inf=0x7f7f7f7f;
template<typename T>void read(T &x)
{
    x = 0;char ch = getchar();ll f = 1;
    while(!isdigit(ch)){if(ch == '-')f*=-1;ch=getchar();}
    while(isdigit(ch)){x = x*10+ch-48;ch=getchar();}x*=f;
}
template<typename T>void write(T x)
{
    if(x<0)
    {
        putchar('-');
        x=-x;
    }
    if(x>9)
    {
        write(x/10);
    }
    putchar(x%10+'0');
}
ll T;
bool flag;
int main()
{
    read(T);
    while(T--)
    {
    }
    return 0;
}