//Power Of Ninja Go
#include <bits/stdc++.h>
#ifdef atom
#include "gradertxt.c"
#else
#include "artclass.h"
#endif
using namespace std;
typedef long long ll; typedef pair<int, int> ii;
#define X first
#define Y second
#define vi vector<int>
#define vii vector< ii >
#define pb push_back
int sq(int x){ return x*x;}
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
double res = 0;
int n = H, m = W;
for(int i = 0; i< n; i++)
{
for(int j = 0; j< m; j++)
{
if(i+1< n) res += sq(R[i][j]-R[i+1][j])+sq(G[i][j]-G[i+1][j])+sq(B[i][j]-B[i+1][j]);
if(j+1< m) res += sq(R[i][j]-R[i][j+1])+sq(G[i][j]-G[i][j+1])+sq(B[i][j]-B[i][j+1]);
}
}
res /= n; res /= m;
if(res> 5000) return 3;
if(res> 1200) return 1;
if(res> 500) return 2;
return 4;
}
