#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]) {
long long res1=0, res2=0, res3=0, res=0;
for(int i=0; i<H; i++){
for(int j=0; j<W; j++){
int ans1=0, ans2=0, ans3=0;
for(int k=-1; k<=1; k++){
for(int l=-1; l<=1; l++){
if(i+k<H && i+k && j+l<W && j+l){
ans1+=abs(R[i][j]-R[i+k][j+l]);
ans2+=abs(G[i][j]-G[i+k][j+l]);
ans3+=abs(B[i][j]-B[i+k][j+l]);
}
}
}
if(ans1+ans2+ans3>1000)res++;
res1+=ans1;
res2+=ans2;
res3+=ans3;
}
}
//cout<<res<<" "<<res1<<" "<<res2<<" "<<res3<<" ";
if(res>20000)return 3;
if(res<1000)return 4;
if(res<2000)return 2;
return 1;
}
