#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int a[1000][1000];
int main()
{
   for(int i=1;i<=4;i++)
   {
   	for(int j=1;j<=4;j++)
   	{
   		cin>>a[i][j];
		if(a[i-1][j]==a[i][j]||a[i][j-1]==a[i][j]||a[i+1][j]==a[i][j]||a[i][j+1]==a[i][j])
		{
			cout<<"CONTINUE"<<endl;
			return 0;
		} 
		else
		{
			cout<<"GAMEOVER"<<endl;
			return  0;
		}
	}
   }	
} 

样例都没过