#include <iostream>
using namespace std;

int main()
{
    double v1, v2, v3, t1, t2, t3, d1, d2, d3, distance, time = 0;
    cin >> v1 >> t1 >> v2 >> t2 >> v3 >> t3;

    d1 = t1 * v1;
    d2 = t2 * v2;
    d3 = t3 * v3;
    distance = (d1 + d2 + d3) / 2;

    if (d1 > distance)
    {
        time = (d1 - distance) / v1;
    }
    else
    {
        time += t1;
        distance -= d1;
        if (d2 > distance)
        {
            time += (d2 - distance) / v2;
        }
        else
        {
            time += t2;
            distance -= d2;
            if (d3 > distance)
            {
                time += (d3 - distance) / v3;
            }
        }
    }
    cout << "Time: " << time;

    return 0;
}