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 * and open the template in the editor.
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package codejam;

/**
 *
 * @author eblanco
 */
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import javax.swing.JFileChooser;

public class RecycledNumbers {

    public static String DatosArchivo[] = new String[10000];

    public static int[] convertStringArraytoIntArray(String[] sarray) throws Exception {
        if (sarray != null) {
            int intarray[] = new int[sarray.length];
            for (int i = 0; i < sarray.length; i++) {
                intarray[i] = Integer.parseInt(sarray[i]);
            }
            return intarray;
        }
        return null;
    }

    public static boolean CargarArchivo(String arch) throws FileNotFoundException, IOException {
        FileInputStream arch1;
        DataInputStream arch2;
        String linea;
        int i = 0;

        if (arch == null) {
            //frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            JFileChooser fc = new JFileChooser(System.getProperty("user.dir"));
            int rc = fc.showDialog(null, "Select a File");
            if (rc == JFileChooser.APPROVE_OPTION) {
                arch = fc.getSelectedFile().getAbsolutePath();
            } else {
                System.out.println("No hay nombre de archivo..Yo!");
                return false;
            }
        }
        arch1 = new FileInputStream(arch);
        arch2 = new DataInputStream(arch1);
        do {
            linea = arch2.readLine();
            DatosArchivo[i++] = linea;
            /* if (linea != null) {
            System.out.println(linea);
            }*/
        } while (linea != null);
        arch1.close();
        return true;
    }

    public static boolean GuardaArchivo(String arch, String[] Datos) throws FileNotFoundException, IOException {
        FileOutputStream out1;
        DataOutputStream out2;
        int i;
        out1 = new FileOutputStream(arch);
        out2 = new DataOutputStream(out1);

        for (i = 0; i < Datos.length; i++) {
            if (Datos[i] != null) {
                out2.writeBytes(Datos[i] + "\n");
            }
        }
        out2.close();
        return true;
    }

    public static void echo(Object msg) {
        System.out.println(msg);
    }

    public static void main(String[] args) throws IOException, Exception {
        String[] res = new String[10000], num = new String[2];
        int i, j, k, ilong;
        int ele = 1;
       ArrayList al = new ArrayList();
        String FName = "C-small-attempt0",  istr, irev, linea;
        if (CargarArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".in")) {
            for (j = 1; j <= Integer.parseInt(DatosArchivo[0]); j++) {
                linea = DatosArchivo[ele++];
                num = linea.split(" ");
                   al.clear();
                // echo("A: "+num[0]+" B: "+num[1]);
                for (i = Integer.parseInt(num[0]); i <= Integer.parseInt(num[1]); i++) {
                    istr = Integer.toString(i);
                    ilong = istr.length();
                 
                    for (k = 1; k < ilong; k++) {
                        if (ilong > k) {
                            irev = istr.substring(istr.length() - k, istr.length()) + istr.substring(0, istr.length() - k);
                            //echo("caso: " + j + ": isrt: " + istr + " irev: " + irev);
                            if ((Integer.parseInt(irev) > Integer.parseInt(num[0])) && (Integer.parseInt(irev) > Integer.parseInt(istr)) && (Integer.parseInt(irev) <= Integer.parseInt(num[1]))) {
                                al.add("(" + istr + "," + irev + ")");
                            }
                        }
                    }
                }
                HashSet hs = new HashSet();
                hs.addAll(al);
                al.clear();
                al.addAll(hs);
                res[j] = "Case #" + j + ": " + al.size();
                echo(res[j]);
                LeerArchivo.GuardaArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".out", res);
            }
        }
    }
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Solution {
	static int vp[][];
	static int no_vp=0;
	public static void main(String args[]) throws IOException
	{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		int t,i;
		t=Integer.parseInt(br.readLine());
		
		for(i=0;i<t;i++)
		{
			st=new StringTokenizer(br.readLine());
			int a,b;
			int result=0;
			a=Integer.parseInt(st.nextToken());
			b=Integer.parseInt(st.nextToken());
			
			no_vp=0;
			vp=new int[1000][2]; // Will not work for Large Input
			boolean ex1=true,ex2=true,ex3=true;
			
			if(b<=10)
			{
				if(b!=10)
				{
					ex1=false;
					ex2=false;
					ex3=false;
					result=0;
				}
				else
				{
					if(a==1)
					{
						ex1=false;
						ex2=false;
						ex3=false;
						result=1;
					}
					
				}
			}
			else if(b<=100)
			{
				if(b!=100)
				{
					ex1=true;
					ex2=false;
					ex3=false;
					result=0;
				}
				else
				{
					if(a==1)
					{
						//Extracting 2 digits from 100 will give 1
						ex1=true;
						ex2=false;
						ex3=false;
						result=1;
					}
				}
			}
			else if(b<=1000)
			{
				if(b!=1000)
				{
					ex1=true;
					ex2=true;
					ex3=false;
					result=0;
				}
				else
				{
					if(a==1)
					{
						//Extracting 3 digits from 1000 will give 1
						ex1=true;
						ex2=true;
						ex3=false;
						result=1;
					}
				}
			}
			else
			{
				ex1=true;
				ex2=true;
				ex3=true;
			}
			
			if(ex1==true)
			{
				int j;
				for(j=a;j<=b;j++)
				{
					int last=j%10;
					int rem=j/10;
					int num=-1;
					if(rem!=0)
					{
						if(rem<10)
						{
							num=last*10+rem;
						}
						else if(rem<100)
						{
							num=last*100+rem;
						}
						else if(rem<1000)
						{
							num=last*1000+rem;
						}
						else
						{
							System.out.println("Not a Valid Case for Small Input");
						}
						if(num>=a && num<=b && j!=num)
						{
							if(j<=num)
							{
								if(add(j,num))
									result++;
							}
							else
							{
								if(add(num,j))
									result++;
							}
						}
					}
					

				}
			}
			if(ex2==true)
			{
				//Do Nothing
			}
			if(ex3==true)
			{
				//Do Nothing
			}
			System.out.println("Case #"+(i+1)+": "+result);

		}
	}
	static boolean add(int m,int n)
	{
		//Pass such that m<n
		boolean uniq_pair=true;
		int i;
		
		for(i=0;i<no_vp;i++)
		{
			int a=vp[i][0];
			int b=vp[i][1];
			if((a==m && b==n) || (b==m && a==n))
				return false;
		}
		vp[no_vp][0]=m;
		vp[no_vp][1]=n;
		no_vp++;
		return uniq_pair;
	}
}

