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

using ll = long long;
using pll = pair<ll,ll>;
using vll = vector<ll>;
using vi = vector<int>;
using pi = pair<int, int>;
using vpi = vector<pair<int, int>>;
using vai = vector<array<int, 3>>;

#define x first
#define y second
#define all(x) x.begin(), x.end()

void solve() {
    int n=8;
    vector<string> grid(n);
    for (auto &i : grid) cin >> i;

    int s=-1, v=-1;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            int pos = ((i%2)+(j%2))%2;

            if (grid[i][j] == 'S') {
                if (s == -1) {
                    s = pos;
                } else if (s != pos) {
                    cout << "LEHETETLEN";
                    return;
                }
            } else if (grid[i][j] == 'V') {
                if (v == -1) {
                    v = pos;
                } else if (v != pos) {
                    cout << "LEHETETLEN";
                    return;
                }
            }
        }
    } if (s == v && s != -1) {
        cout << "LEHETETLEN";
        return;
    }
    cout << "LEHETSEGES";
}

int main() {
	ios::sync_with_stdio(0);
    cin.tie(0);

    int t=1;
    //cin >> t;
    while (t--) {
        solve();
    }
}