#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int>vi;
#define pb push_back
#define sz(v) (int)v.size()
typedef pair<int,int>pi;
#define fi first
#define se second
typedef vector<pi>vpi;
#define eb emplace_back
#define FOR(i,a,b) for(int i=a; i<b; i++)
#define ROF(i,a,b) for(int i=b-1; i>=a; i--)
void ckmax(int &x, int y){x=max(x,y);}
void ckmin(int &x, int y){x=min(x,y);}
const int MX=1e5+10;
//-----------------------------
int random(int l, int r){
int ans=l;
if(r>l){
ans+=rand()%(r-l);
}
return ans;
}
int style(int N, int M, int R[500][500], int G[500][500], int B[500][500]) {
int H=N,W=M;
int cnt=0;
FOR(i,0,N) FOR(j,0,M){
if(G[i][j]>=max(B[i][j],R[i][j])) cnt++;
}
if(cnt>=H*W/3) return 2;
int f=0;
int rep=1e6;
while(rep--){
int x=random(0,N-1),y=random(0,M-1);
int xx=random(0,N-1),yy=random(0,M-1);
if(abs(R[x][y]-R[xx][yy])>=50) f=1;
if(abs(G[x][y]-G[xx][yy])>=50) f=1;
if(abs(B[x][y]-B[xx][yy])>=50) f=1;
}
if(f) return 1;
cnt=0;
FOR(i,0,N) FOR(j,0,M){
if(R[i][j]>=max(B[i][j],G[i][j])) cnt++;
}
if(cnt>=H*W/3) return 4;
return 3;
}
