#include <bits/stdc++.h>
template <class T>
void read(T &x) {
  char ch;
  while ((ch = getchar()) && !isdigit(ch))
    ;
  x = ch - '0';
  while ((ch = getchar()) && isdigit(ch)) x = x * 10 + ch - '0';
}
int n, m, k, ax, ay, p, q;
long long s[2100][2100], A = -1, S;
int main() {
  read(n);
  read(m);
  read(k);
  for (int i = 1; i <= n; i++)
    for (int j = 1; j <= m; j++) read(p), s[i + j - 1][i - j + m] = p;
  for (int i = 1; i <= n + m - 1; i++)
    for (int j = 1; j <= m + n - 1; j++)
      s[i][j] += s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1];
  for (int i = k; i <= n + 1 - k; i++)
    for (int j = k; j <= m + 1 - k; j++) {
      S = 0;
      p = i + j - 1, q = i - j + m;
      for (int l = 0; l <= k - 1; l++)
        S += s[p + l][q + l] - s[p - l - 1][q + l] - s[p + l][q - l - 1] +
             s[p - l - 1][q - l - 1];
      if (S > A) A = S, ax = i, ay = j;
    }
  printf("%d %d", ax, ay);
}
