import java.io.*;
import java.util.*;

public class whiteSheet {
    static int x1,x2,x3,x4,x5,x6,y1,y2,y3,y4,y5,y6;
    public static int f(double x,double y)//checks if (x,y) lies inside any one of the black sheets
    {   if(x>=x3 && y>=y3 && x<=x4 && y<=y4)
            return 1;
        if(x>=x5 && y>=y5 && x<=x6 && y<=y6)
            return 1;
        return 0;
    }
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        String s[]=br.readLine().split(" ");//start of reading input
        x1=Integer.parseInt(s[0]);
        y1=Integer.parseInt(s[1]);
        x2=Integer.parseInt(s[2]);
        y2=Integer.parseInt(s[3]);
        String st[]=br.readLine().split(" ");
        x3=Integer.parseInt(st[0]);
        y3=Integer.parseInt(st[1]);
        x4=Integer.parseInt(st[2]);
        y4=Integer.parseInt(st[3]);
        String str[]=br.readLine().split(" ");
        x5=Integer.parseInt(str[0]);
        y5=Integer.parseInt(str[1]);
        x6=Integer.parseInt(str[2]);
        y6=Integer.parseInt(str[3]);
        boolean fl=false;
        for(double i=x1;i<=x2;i+=0.5)//as all coordinates are integers smallest gap possible is 1 (because 0 gap means no gap).To check
											inside that gap also, i is incremented by 0.5
        {   if(f(i,y1)==0)
            {   fl=true;
                break;
            }
            if(f(i,y2)==0)
            {   fl=true;
                break;
            }
        }//this for loop is to check the points on horizontal boundaries of white sheet
        for(double i=y1;i<=y2;i+=0.5)
        {   if(f(x1,i)==0)
            {   fl=true;
                break;
            }
            if(f(x2,i)==0)
            {   fl=true;
                break;
            }
        }//this for loop is to check the points on vertical boundaries of white sheet
        if(fl==true)
            System.out.print("YES");
        else
            System.out.print("NO");
    }
}