#include "artclass.h"
#include<math.h>
#include<cstdio>
#include<cstdlib>
using namespace std;
int rr[4]={1,0,-1,0};
int cc[4]={0,1,0,-1};
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
int i,j,k;
int mean=0;
for(i=1;i<H-1;i++){
for(j=1;j<W-1;j++){
for(k=0;k<4;k++){
mean+=abs(R[i+rr[k]][j+cc[k]]-R[i][j])+abs(G[i+rr[k]][j+cc[k]]-G[i][j])+abs(B[i+rr[k]][j+cc[k]]-B[i][j]);
}
}
}
mean/=((H-1)*(W-1));
mean/=4;
if(mean>53) return 3;
if(mean<9) return 4;
if(mean>23) return 2;
return 1;
}
