#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
int d = 0, cnt = 0;
for (int i = 0; i < H - 1; i++) {
for (int j = 0; j < W; j++) {
d += abs(R[i][j] - R[i - 1][j]) + abs(G[i][j] - G[i + 1][j]) + abs(B[i][j] - B[i + 1][j]);
cnt++;
}
}
for (int i = 0; i < H; i++) {
for (int j = 0; j < W - 1; j++) {
d += abs(R[i][j] - R[i][j + 1]) + abs(G[i][j] - G[i][j + 1]) + abs(B[i][j] - B[i][j + 1]);
cnt++;
}
}
d /= cnt;
if (d <= 10) return 4;
else if (d <= 25) return 1;
else if (d <= 65) return 2;
else return 3;
}
