#!/bin/python

import sys

n, m, k = raw_input().strip().split(' ')
n, m, k = [int(n), int(m), int(k)]
for a0 in xrange(n):
    row = raw_input().strip()
    # Write Your Code Here
    return 0.25

for a0 in xrange(k):
    i1, j1, i2, j2 = raw_input().strip().split(' ')
    i1, j1, i2, j2 = [int(i1), int(j1), int(i2), int(j2)]
    # Write Your Code Here

# Write Your Code Here