import java.util.List;
import java.util.ArrayList;

interface Position
{
    public List<Position> getAdjacents( );
    public boolean getValue( );
}

class World
{
    private class MyPosition implements Position
    {
        public MyPosition( int r, int c )
        {
            row = r;
            col = c;
        }
        
        
        public List<Position> getAdjacents( )
        {
          /* Redacted */
        }

        public boolean equals( Object other )
        {
            if( ! ( other instanceof MyPosition ) )
                return false;

            MyPosition rhs = (MyPosition) other;
            return row == rhs.row && col == rhs.col;
        }

        public boolean getValue( )
        {
            return water[ row ][ col ];
        }

        public String toString( )
        {
            return "(" + row + "," + col + ")";
        }

        private int row;
        private int col;
    }
    
    private boolean [ ] [ ] water  =
    {
        { true, false, true, false, false, false },
        { true, false, true, true, false, true },
        { false, false, false, true, true, true },
        { true, true, true, true, false, false },
        { false, true, false, true, false, true },
        { false, false, false, true, true, true }
    };
    
    public Position newPosition( int r, int c )
    {
        return new MyPosition( r, c );
    }
        
    // Public driver
    public List<Position> getIsland( Position p )
    {
        ArrayList<Position> result = new ArrayList<Position>( );
        getIsland( p, result );
        return result;
    }
    
    // Recursive routine
    private void getIsland( Position pos, List<Position> island )
    {
        if( ( !pos.getValue( ) ) && !island.contains( pos ) )
        {
            island.add( pos );
            for( Position p : pos.getAdjacents( ) ) 
                getIsland( p, island );
        }
    }
}

class Day7
{
    public static void main( String [ ] args )
    {
        World w1 = new World( );
        
        System.out.println( w1.getIsland( w1.newPosition( 0, 1 ) ) );
        System.out.println( w1.getIsland( w1.newPosition( 4, 3 ) ) );
        System.out.println( w1.getIsland( w1.newPosition( 4, 4 ) ) );
        
    }
}