#include "artclass.h"
#ifndef EVAL
#include "grader.cpp"
#endif
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
#define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define OK cout << "OK" << endl;
int n, m;
int style(int H, int W, int r[500][500], int g[500][500], int b[500][500]){
n = H; m = W;
int i, j, cnt = 0;
ll diff = 0;
for(i = 0; i < n; i++){
for(j = 0; j < m-1; j++){
diff += abs(r[i][j]-r[i][j+1])+abs(g[i][j]-g[i][j+1])+abs(b[i][j]-b[i][j+1]);
cnt++;
}
}
for(i = 0; i < n-1; i++){
for(j = 0; j < m; j++){
diff += abs(r[i][j]-r[i+1][j])+abs(g[i][j]-g[i+1][j])+abs(b[i+1][j]-b[i][j]);
cnt++;
}
}
diff /= cnt;
if(diff <= 8) return 4;
if(diff <= 30) return 1;
cnt = 0;
for(i = 0; i < n; i++){
for(j = 0; j < m; j++){
if(r[i][j] <= g[i][j] && b[i][j] <= g[i][j]) cnt++;
}
}
if((double)cnt >= double(n*m)*0.4) return 2;
return 3;
}
