#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 style(int N, int M, int R[500][500], int G[500][500], int B[500][500]) {
int cnt=0;
FOR(i,0,N) FOR(j,0,M){
if(R[i][j]+G[i][j]+B[i][j]<10) cnt++;
}
if(cnt>=(N*M)/2) return 1;
cnt=0;
FOR(i,0,N) FOR(j,0,M){
if(R[i][j]+B[i][j]<5 && G[i][j]>=100) cnt++;
}
if(cnt>=(N*M)/2) return 2;
cnt=0;
FOR(i,0,N) FOR(j,0,M){
if(G[i][j]+B[i][j]<20 && R[i][j]>=80) cnt++;
}
if(cnt>=(N*M)/2) return 4;
return 3;
}
