#include <bits/stdc++.h>
#include "artclass.h"
using namespace std;
int style(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
int diff = 0;
for (int i = 0; i < n; i++){
for (int j = 0; j < m; j++){
if (i) diff += abs(r[i][j] - r[i-1][j]) + abs(g[i][j] - g[i-1][j]) + abs(b[i][j] - b[i-1][j]);
if (j) diff += abs(r[i][j] - r[i][j-1]) + abs(g[i][j] - g[i][j-1]) + abs(b[i][j] - b[i][j-1]);
}
}
if (diff <= 4e6) return 4;
if (diff <= 1e7) return 1;
if (diff <= 2e7) return 3;
return 2;
}
