#include <bits/stdc++.h>
#include "artclass.h"
using namespace std;
#define ll long long
#define db long double
#define a3 array<int, 3>
#define rgb R[i][j], G[i][j], B[i][j]
int di[] = {0, -1, 1, 0};
int dj[] = {-1, 0, 0, 1};
int h, w;
bool in(int i, int j) {
return ((i < h) && (0 <= i) && (j < w) && (0 <= j));
}
bool isWhite(int x, int y, int z) {
if ((x + y + z) < 497) return 0;
if (min({x, y, z}) < 154) return 0;
return 1;
}
bool isBlack(int x, int y, int z) {
if ((x + y + z) > 50) return 0;
if (max({x, y, z}) > 31) return 0;
return 1;
}
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
h = H;
w = W;
ll diffSides = 0;
ll val = 0;
int qtd = 0;
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
int mi = min({rgb});
int mx = max({rgb});
if (!isWhite(rgb) && !isBlack(rgb)) {
val += (mx - mi);
qtd++;
}
for (int k = 0; k < 4; k++) {
int x = i + di[k], y = j + dj[k];
if (!in(x, y)) continue;
diffSides += abs(R[i][j] - R[x][y]);
diffSides += abs(G[i][j] - G[x][y]);
diffSides += abs(B[i][j] - B[x][y]);
}
}
}
diffSides /= (H*W);
if (diffSides <= 35) return 4;
//for (auto u : colors) {
// for (auto k : u) cout << k << " ";
// cout << "\n";
//}
//return (val/qtd);
if ((val/qtd) > 93) return 1;
if (diffSides <= 75) return 1;
if (diffSides > 215) return 3;
return 2;
}
