#include<iostream>
using namespace std;
int main()
{
    int n;
    cin>>n;
    string arr1[n];
    float arr2[n],arr3[n];
    for(int i=0;i<n;i++)
    {
        cin>>arr1[i];
        cin>>arr2[i];
        cin>>arr3[i];
    }
    for(int j=0;j<n;j++)
    {
        cout<<arr2[j]-(arr[j])/100)<<endl;
    }
    return 0;
}