#include <iostream>
//#include <string>

using namespace std;

int main()
{
    string t[8];
    for(int i=0; i<8; i++)
    {
        cin >> t[i];
    }
    string g;
    g="X";
    int a, b, c=0, d, r;
    for(a=0; a<8; a++)
    {
        for(b=0; b<8; b++)
        {
            string y;
            y=t[a][b];
            if((y=="S" or y=="V") and c==0)
            {
                g=y;
                c++;
                d=a;
                r=b;
            }
        }
    }
    if(g!="X"){
    if((g=="S" and r%2==d%2)or(g=="V" and r%2!=d%2)){
    for(int i=0; i<8; i++)
    {
        for(int j=0; j<8; j++)
        {
            string k;
            k=t[i][j];
            if(k=="V" and i%2==j%2)
            {
                cout << "LEHETETLEN";
                return 0;
            }
            if(k=="S" and i%2!=j%2)
            {
                cout << "LEHETETLEN";
                return 0;
            }
        }
    }
    cout << "LEHETSEGES";
    return 0;
    }
    if((g=="V" and r%2==d%2)or(g=="S" and r%2!=d%2)){
        for(int i=0; i<8; i++)
    {
        for(int j=0; j<8; j++)
        {
            string k;
            k=t[i][j];
            if(k=="S" and i%2==j%2)
            {
                cout << "LEHETETLEN";
                return 0;
            }
            if(k=="V" and i%2!=j%2)
            {
                cout << "LEHETETLEN";
                return 0;
            }
        }
    }
    cout << "LEHETSEGES";
    return 0;
    }
    }
    else{
        cout << "LEHETSEGES";
        return 0;
    }
}