#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define ff first
#define ss second

typedef long long int ll;
typedef vector< pair<int, int> > vii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<long long int> vll;
typedef pair<int, int> pii;

const ll INF = 1e18;
const int inf = 1e9;
const int MOD = 1e9 + 7;
const int nax = 1000000 + 10;

int main()
{
    ios::sync_with_stdio(0);
    int n, m, k;
    cin >> n >> m >> k;
    for(int i = 1; i <= n; i++)
    {
        for(int j = 1; j <= m; j++)
        {
            char ch; cin >> ch;
        }
    }
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    cout << 1.0000000000;
    return 0;
}