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

public class whiteSheet {
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        String s[]=br.readLine().split(" ");
        int x1,x2,x3,x4,x5,x6,y1,y2,y3,y4,y5,y6;
        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;
        if(x3<=x1 && y3<=y1 && x4>=x2 && y4>=y2)//white sheet is completely inside first black sheet
            fl=true;
        if(fl==false && x5<=x1 && y5<=y1 && x6>=x2 && y6>=y2)//white sheet is completely inside second black sheet
            fl=true;
        if(fl==false && x3<=x1 && y3<=y1 && x4>x1 && x4<x2 && y4>=y2)//case 1
            x1=x4;
        if(fl==false && x4>=x2 && y4>=y2 && x3>x1 && x3<x2 && y3<=y2)//case 2
            x2=x3;
        if(fl==false && x3<=x1 && x4>=x2 && y4>=y2 && y3>y1 && y3<y2)//case 3
            y2=y3;
        if(fl==false && x3<=x1 && x4>=x1 && y3<=y1 && y4>y1 && y4<y2)//case 4
            y1=y4;
        if(fl==false && x5<=x1 && y5<=y1 && x6>=x2 && y6>=y2)//checking if second black sheet covers the remaining part
            fl=true;
        if(fl==true)
            System.out.print("NO");
        else
            System.out.print("YES");
    }
}