import java.util.Scanner;

class TableBlock 
{
	private int cellRow;
	private int cellColumn;
	private char type='E';
	//--> a simple getter
	public int getRow() 
	{
		return cellRow;
	}
	//--> a simple getter
	public int getColumn() 
	{
		return cellColumn;
	}
	//--> a simple getter
	public char getBlockType() 
	{
		return type;
	}
	public void setBlockType(char myType)
	{
		type=myType;
	}
	//--> constructor for Block, gets row and column
	public TableBlock(int row, int column)
	{
		cellRow=row;
		cellColumn=column;
	}
	
}

class Table 
{
	public char RightTurn= 'R' ;
	public boolean isWinner=false;
	private int tableRow;
	private int tableColumn;
	//--> a simple getter
	public int getRowNum()
	{
		return tableRow;
	}
	//--> a simple getter
	public int getColumnNum()
	{
		return tableColumn;
	}
	//--> a simple getter
	private TableBlock[][] AllBlocks;
	public TableBlock[][] getBlocks() 
	{
		return AllBlocks;
	}
	//--> constructor for Table, gets rowNum and columnNum
	public Table(int rowNum, int columnNum)
	{
		tableRow=rowNum;
		tableColumn=columnNum;
		AllBlocks = new TableBlock[tableRow][tableColumn];
		for(int i=0;i<tableRow;i++)
			for(int j=0;j<tableColumn;j++)
				AllBlocks[i][j]=new TableBlock(i,j);
	}
}

public class FourInARow
{
	private char CheckWinners()
	{
		//System.out.printf("Injaro: %c\n",Board.getBlocks()[1][1].getBlockType());
		//Orib checking:
		for(int i=0;i<Board.getRowNum();i++)
			for(int j=0;j<Board.getColumnNum();j++)
			{
				if(Board.getBlocks()[i][j].getBlockType()!='E')
				{
				if(j+3<Board.getColumnNum()&& i+3<Board.getRowNum() )
				{
					if(Board.getBlocks()[i][j].getBlockType()==Board.getBlocks()[i+1][j+1].getBlockType() && Board.getBlocks()[i+1][j+1].getBlockType()==Board.getBlocks()[i+2][j+2].getBlockType()&& Board.getBlocks()[i+2][j+2].getBlockType()==Board.getBlocks()[i+3][j+3].getBlockType())
					{
						Board.isWinner=true;
						return Board.getBlocks()[i][j].getBlockType();
					}
				}
				if(j-3>=0&& i+3<Board.getRowNum())
					if(Board.getBlocks()[i][j].getBlockType()==Board.getBlocks()[i+1][j-1].getBlockType() && Board.getBlocks()[i+1][j-1].getBlockType()==Board.getBlocks()[i+2][j-2].getBlockType()&& Board.getBlocks()[i+2][j-2].getBlockType()==Board.getBlocks()[i+3][j-3].getBlockType())
					{
						Board.isWinner=true;
						return Board.getBlocks()[i][j].getBlockType();
					}
				}
			}
					
		//And this one checks the rows for four in a row
		for(int i=0;i<Board.getRowNum();i++)
			for(int j=0;j<Board.getColumnNum();j++)
				if(  (j+3)<Board.getColumnNum() )
					if(Board.getBlocks()[i][j].getBlockType()!='E'&&Board.getBlocks()[i][j].getBlockType()==Board.getBlocks()[i][j+1].getBlockType()&&Board.getBlocks()[i][j+1].getBlockType()==Board.getBlocks()[i][j+2].getBlockType()&&Board.getBlocks()[i][j+2].getBlockType()==Board.getBlocks()[i][j+3].getBlockType())
					{
						Board.isWinner=true;
						return Board.getBlocks()[i][j].getBlockType();
					}
						
		//This one checks the columns
		for(int i=0;i<Board.getColumnNum();i++)
			for(int j=0;j<Board.getRowNum();j++)
				if(  (i+3)<Board.getRowNum() )
					if(Board.getBlocks()[i][j].getBlockType()!='E'&&Board.getBlocks()[i][j].getBlockType()==Board.getBlocks()[i+1][j].getBlockType()&&Board.getBlocks()[i+1][j].getBlockType()==Board.getBlocks()[i+2][j].getBlockType()&&Board.getBlocks()[i+2][j].getBlockType()==Board.getBlocks()[i+3][j].getBlockType())
					{
						Board.isWinner=true;
						return Board.getBlocks()[i][j].getBlockType();
					}
		return 'E';
		
	}
	private char turn='R';
	private Table Board;
	//--> a simple getter
	public Table getTable()
	{
		return Board;
	}

	//--> a simple getter
	public char getTurn() 
	{
		return turn;
	}
	
	//--> constructor for FourInARow, gets table; initializes turn, and creates rowTop[]
	public FourInARow(Table table) 
	{
		Board=table;
	}
	//--> this is the main function, all methods occur in this...
	//--> checking errors at first, modifying new block and checking winner or the equality case.
	public String play(char turn, int column)
	{
		if(turn != Board.RightTurn)
			return "error";
		else
		{
			if(Board.RightTurn=='R')
				Board.RightTurn='Y';
			else if(Board.RightTurn=='Y')
				Board.RightTurn='R';
		}
		Boolean Equal=false;
		if(Board.isWinner==true)
			return "";
		if(column>=Board.getColumnNum())
			return "error";
		else if(Board.getBlocks()[0][column].getBlockType()!='E')
			return "error";
		else
		{
			for(int i=(Board.getRowNum()-1) ; i>=0; i--)
				if(Board.getBlocks()[i][column].getBlockType()=='E')
				{
					Board.getBlocks()[i][column].setBlockType(turn);
					break;
				}
					
//			for(int i=0;i<Board.getRowNum();i++)
//				if(i==(Board.getRowNum()-1)&&Board.getBlocks()[i][column].getBlockType()=='E')
//				{
//					Board.getBlocks()[i][column].setBlockType(turn);
//					System.out.printf("Injaro: %c",Board.getBlocks()[0][1].getBlockType() );
//					System.out.printf("inja chi?! i=%d Board.getRowNum=%d", i,Board.getRowNum());
//				}
//				else if(Board.getBlocks()[i][column].getBlockType()!='E')
//				{
//					Board.getBlocks()[i-1][column].setBlockType(turn);
//				}
			for(int i=0;i<Board.getColumnNum();i++)
				if(Board.getBlocks()[0][i].getBlockType()!='E')
					Equal=true;
				else
				{
					Equal=false;
					break;
				}
			if(Equal==true)
			{
				Board.isWinner=true;
				return "equal";
			}
		}
		if(CheckWinners()=='R')
			return "Red wins";
		if(CheckWinners()=='Y')
			return "Yellow wins";
		return "";
		
	}
	
	
	public static void main(String[] args) 
	{
		Scanner input = new Scanner(System.in);
		Table table = new Table(4,4);
		FourInARow game = new FourInARow(table);
		while(true) 
		{
			String charInput = input.next();
			int intInput = input.nextInt();
			System.out.print(game.play(charInput.charAt(0), intInput));	
			//System.out.print(print());
		}
		
	}
	
}