UVa837

#include <bits/stdc++.h>
using namespace std;

// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
// #pragma GCC optimize("unroll-loops")

// template <class T> inline T bigMod(T p,T e,T M){T ret=1; for(;e>0;e>>=1){ if(e&1) ret=(ret*p)%M; p=(p*p)%M;} return (T)ret;}
// template <class T> inline T modInverse(T a,T M){return bigMod(a,M-2,M);}
// template <class T> inline T gcd(T a,T b){if(b==0)return a;return gcd(b,a%b);}
// template <class T> inline T lcm(T a,T b) {a=abs(a);b=abs(b); return (a/gcd(a,b))*b;}

#define ll              long long int
#define vi              vector< int >
#define vll             vector< ll >

#define ff              first
#define ss              second
#define mp              make_pair

#define FOR(i,x,y)      for(int i = int(x); i < int(y); i++)
#define ROF(i,x,y)      for(int i = int(x)-1; i >= int(y); i--)
#define clr(arr,x)      memset(arr, 0, sizeof arr)
#define all(v)          v.begin(), v.end()
#define rall(v)         v.rbegin(), v.rend()
#define unq(v)          sort(all(v)),(v).resize(unique(all(v))-v.begin())
#define fastIO          ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr)

#define sc              scanf
#define sc1(x)          sc("%d",&x);
#define sc2(x,y)        sc("%d %d", &x, &y)
#define sc3(x,y,z)      sc("%d %d %d", &x, &y, &z)
#define scl1(x)         sc("%lld",&x);
#define scl2(x,y)       sc("%lld %lld", &x, &y)
#define scf1(x)         sc("%lf",&x);
#define scf2(x,y)       sc("%lf %lf", &x, &y)

#define pf              printf
#define pf1(x)          pf("%d",x);
#define pf2(x,y)        pf("%d %d", x, y)
#define pfl1(x)         pf("%lld",x);

#define spc             pf(" ")
#define line            pf("\n")

#define MOD             (int)(998244353)
#define MaxN            100000
#define inf             0x3f3f3f3f
#define PI              (2.0*acos(0.0))  // 3.1415926535897932
#define eps             1e-9
#define Log(b,x)        (log(x)/log(b))

/*...............Erfan...............*/


struct Point
{
    double x1,x2,val;
    void scan(){
        double a,b,c,d;
        scf2(a,b); scf2(c,d);
        x1 = min(a,c);
        x2 = max(a,c);
        scf1(val);
    }
};


int main()
{
    #ifndef ONLINE_JUDGE
        clock_t tStart = clock();
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    int t;
    sc1(t);

    FOR(ca,0,t){
        if(ca) line;
        int n,p=0;
        sc1(n);
        Point arr[n];
        double xx[2*n];
        FOR(i,0,n){
            arr[i].scan();
            xx[p++]=arr[i].x1;
            xx[p++]=arr[i].x2;
        }
        sort(xx,xx+p);
        pf("%d\n-inf %.3lf 1.000\n",p+1,xx[0]);
        FOR(i,1,p){
            double ans = 1.0;
            pf("%.3lf %.3lf ",xx[i-1],xx[i]);
            FOR(j,0,n){
                if(arr[j].x1<=xx[i-1] && arr[j].x2>=xx[i]) ans*=arr[j].val;
            }
            pf("%.3lf\n",ans);
        }
        pf("%.3lf +inf 1.000\n",xx[p-1]);
    }


    #ifndef ONLINE_JUDGE
        fprintf(stderr, "\n>> Runtime: %.10fs\n", (double) (clock() - tStart) / CLOCKS_PER_SEC);
    #endif

    return 0;
}