#include 
     
      #include 
      
       using namespace std;int main(){    int n,k;    double gpa,s,credit,score;    string name;    bool flag = true;    cin >> n;    while (n--)    {        cin >> k;        gpa = 0.0;        s = 0.0;        flag = true;        for (int i = 1; i <= k; i++)        {            cin >> name >> credit >> score;            gpa += credit * score;            s += credit;            if (60 - score >0.000001)                flag = false;        }                gpa = gpa *1.0/ s;        if (flag)            printf("%.2lf\n", gpa);        else            printf("Sorry!\n");        if (n != 0)            printf("\n");    }    return 0;}