#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n,m,k;
    cin>>n>>m>>k;
    char arr[n+1][m+1];
    int i,j,count=0;
    for(i=0;i<n;i++)
        for(j=0;j<m;j++)
        {
            cin>>arr[i][j];
            if(arr[i][j]=='%')
                count++;
        }
    int x[n],y[n],x2[n],y2[n],in=0;
    while(k--)
    {
        cin>>x[in]>>y[in]>>x2[in]>>y2[in];
        in++;
    }
    if(count==0)
        cout<<0<<endl;
    else
    {
        double ans=1.0;
        cout<<ans<<endl;
    }
    return 0;
}