#include <bits/stdc++.h>
using namespace std;
int n, m, a[1010][1010], s[1010][1010], c;
int main() {
	cin >> n >> m >> c;
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= m; j++) cin >> a[i][j];
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= m; j++)
			s[i][j] = a[i][j] + s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1];
//	for(int i = 1; i <= n; i++) {
//		for(int j = 1; j <= m; j++) cout << s[i][j] << ' ';
//		cout << '\n';
//	}
	int ans = -1000000000, ansx, ansy;
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= m; j++)
				if(ans < s[i + c][j + c] - s[i - 1][j + c] - s[i + c][j - 1] + s[i - 1][j - 1]) ans = s[i + c][j + c] - s[i - 1][j + c] - s[i + c][j - 1] + s[i - 1][j - 1], ansx = i, ansy = j;
	cout << ansx << ' ' << ansy;
	return 0;
}