#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main() {
    int n; 
    int m; 
    int k; 
    scanf("%i %i %i", &n, &m, &k);
    for(int a0 = 0; a0 < n; a0++){
        char* row = (char *)malloc(512000 * sizeof(char));
        scanf("%s", row);
        // Write Your Code Here
    }
    for(int a0 = 0; a0 < k; a0++){
        int i1; 
        int j1; 
        int i2; 
        int j2; 
        scanf("%i %i %i %i", &i1, &j1, &i2, &j2);
        // Write Your Code Here
    }
    // Write Your Code Here
    return 0;
}