#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;

int main()
{
    int dx, dy, ds;
    cin >> dx >> dy >> ds;

    int bx, by, bs;
    cin >> bx >> by >> bs;

    char d;
    cin >> d;

    vector<pair<int, int>> speeds = {make_pair(0, 1), make_pair(0, -1), make_pair(-1, 0), make_pair(1, 0)};
    vector<char> speed_names = {'U', 'D', 'L', 'R'};

    pair<int, int> ball_dir = speeds[find(speed_names.begin(), speed_names.end(), d) - speed_names.begin()];

    int main_axis_dif = (dx - bx) * abs((abs(ball_dir.first) - 1)) + (dy - by) * abs((abs(ball_dir.second) - 1));

    double match_main_time = main_axis_dif * 1.0 / ds;
    pair<double, double> ball_newcords = make_pair(bx * 1.0 + ball_dir.first * bs * match_main_time, by * 1.0 + ball_dir.second * bs * match_main_time);

    int cross_axis_dif = (dx - ball_newcords.first) * ball_dir.first + (dy - ball_newcords.second) * ball_dir.second;

    int relative_speed = (bs - ds);

    if (relative_speed == 0) {
        if (cross_axis_dif == 0) {
            cout << ceil(match_main_time);
            return 0;
        } else {
            cout << -1;
            return 0;
        }
    }

    double time = cross_axis_dif * 1.0 / relative_speed;

    if (time >= 0) {
        cout << ceil(time + match_main_time);
    }
    else {
        relative_speed = (bs + ds);

        if (relative_speed == 0) {
            if (cross_axis_dif == 0) {
                cout << ceil(match_main_time);
                return 0;
            } else {
                cout << -1;
                return 0;
            }
        }

        time = cross_axis_dif * 1.0 / relative_speed;

        if (time < 0) {
            cout << -1;
        }
        else {
            cout << ceil(time + match_main_time);
        }
    }

    return 0;
}