#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
double dist(int a, int b, int c, int x, int y, int z){
double d = abs(a - x) + abs(b - y) + abs(c - z);
return d;
}
double mean(int R[500][500], int G[500][500], int B[500][500], int x, int y){
double ret = 0;
int dx[4] = {-1, 0, 1, 0}, dy[4] = {0, 1, 0, -1};
for(int i = 0; i < 4; ++i)
ret += dist(R[x][y], G[x][y], B[x][y], R[x + dx[i]][y + dy[i]], G[x + dx[i]][y + dy[i]], B[x + dx[i]][y + dy[i]]);
return ret;
}
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
double d = 0;
for(int i = 1; i < H - 1; ++i)
for(int j = 1; j < W - 1; ++j){
d += mean(R, G, B, i, j);
}
d /= H*W;
//cout << d << "\n";
// cout << d << " ";
if(d < 40) return 4;
if(105 >= d) return 1;
if(220 > d) return 2;
else return 3;
//return d;
}
