My template

#include<bits/stdc++.h>
using namespace std;
#define gc getchar_unlocked
#define int             long long
#define fo(i,n) for(i=0;i<n;i++)
#define Fo(i,k,n) for(i=k;k<n?i<n:i>n;k<n?i+=1:i-=1)
#define ll long long

#define deb(x) cout << #x << "=" << x << endl
#define deb2(x, y) cout << #x << "=" << x << "," << #y << "=" << y << endl
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define clr(x) memset(x, 0, sizeof(x))
#define sortall(x) sort(all(x))
#define tr(it, a) for(auto it = a.begin(); it != a.end(); it++)
#define PI 3.1415926535897932384626
typedef pair<int, int>	pii;
typedef pair<ll, ll>	pl;
typedef vector<int>		vi;
typedef vector<ll>		vl;
typedef vector<pii>		vpii;
typedef vector<pl>		vpl;
typedef vector<vi>		vvi;
typedef vector<vl>		vvl;


void ipgraph(int n, int m);
void dfs(int u, int par);

const int mod = 1'000'000'007;
const int N = 3e5, M = N;
//=======================

vi g[N];
int a[N];
void c_p_c()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif
}
void solve() {
//   int i, j, n, m;

	int l,r;
        cin>>l>>r;

	





}


int32_t main() {
    // c_p_c();

    int t = 1;
    cin >> t;
    while(t--) {
      solve();
    }

    
	return 0;
}



void ipgraph(int n, int m){
	int i, u, v;
	while(m--){
		cin>>u>>v;
    u--, v--;
		g[u].pb(v);
		g[v].pb(u);
	}
}

void dfs(int u, int par){
	for(int v:g[u]){
		if (v == par) continue;
		dfs(v, u);
	}
}




/// 22


// #define ff              first
// #define ss              second
// #define int             long long
// #define pb              push_back
// #define mp              make_pair
// #define pii             pair<int,int>
// #define vi              vector<int>
// #define mii             map<int,int>
// #define pqb             priority_queue<int>
// #define pqs             priority_queue<int,vi,greater<int> >
// #define setbits(x)      __builtin_popcountll(x)
// #define zrobits(x)      __builtin_ctzll(x)
// #define mod             1000000007
// #define inf             1e18
// #define ps(x,y)         fixed<<setprecision(y)<<x
// #define mk(arr,n,type)  type *arr=new type[n];
// #define w(x)            int x; cin>>x; while(x--)

//--------------------------
// #define si(x)	scanf("%d",&x)
// #define sl(x)	scanf("%lld",&x)
// #define ss(s)	scanf("%s",s)
// #define pi(x)	printf("%d\n",x)
// #define pl(x)	printf("%lld\n",x)
// #define ps(s)	printf("%s\n",s)