#include<bits/stdc++.h>
#include"artclass.h"
using namespace std;
const int MAXN = 500;
const int MAXC = 260;
int cnt(int H, int W, int R[500][500], int G[500][500], int B[500][500], int val)
{
int T = 0;
for(int i = 0; i < H; i++)
for(int j = 0; j < W; j++)
{
int r = R[i][j];
int g = G[i][j];
int b = B[i][j];
if(j)
{
int r2 = R[i][j - 1];
int g2 = G[i][j - 1];
int b2 = B[i][j - 1];
if(abs(r - r2) + abs(g - g2) + abs(b - b2) <= val) continue;
}
if(i)
{
int r2 = R[i - 1][j];
int g2 = G[i - 1][j];
int b2 = B[i - 1][j];
if(abs(r - r2) + abs(g - g2) + abs(b - b2) <= val) continue;
}
++T;
}
return T;
}
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
if(cnt(H, W, R, G, B, 30) <= 700) return 4;
if(cnt(H, W, R, G, B, 100) >= 10000) return 3;
int black = 0;
for(int i = 0; i < H; i++)
for(int j = 0; j < W; j++)
{
int r = R[i][j];
int g = G[i][j];
int b = B[i][j];
if(r + g + b >= 720) black++;
}
if(black <= 100) return 2;
return 1;
}
