import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.*;
import java.util.*;
public class Revn{
	static int bt[]={0,10,100,1000,10000,100000,1000000},gl[]=new int[2000001];;
public static void main(String args[])throws Exception{
BufferedReader br=new BufferedReader(new FileReader("ginp.txt"));
PrintWriter pr=new PrintWriter("Revn.txt");
int i=0,j=0,k=0,a=0,b=0,tc=Integer.parseInt(br.readLine());long co=0;
StringTokenizer st=null;
for(k=1;k<=tc;k++)
{st=new StringTokenizer(br.readLine());
a=Integer.parseInt(st.nextToken());
b=Integer.parseInt(st.nextToken());
co=0;
for(i=a;i<b;i++)
	co=co+get(i,b);

pr.println("Case #"+k+": "+co);
}
pr.close();


}
public static int get(int x,int y)
{
	String s1=""+x;
	int i=0,j=0,l=s1.length()-1,t=bt[l],ty=x,ry=0,gp[]=new int[l];
	for(i=0;i<l;i++)
	{ty=(ty%t)*10+ty/t;
		
	 ry=ty>x&&ty<=y&&gl[ty]==0?ry+1:ry;
	 if(ty<y){
         gl[ty]=1;
         gp[i]=ty;}	 
 
	}
	for(i=0;i<l;i++)
		gl[gp[i]]=0;
	return ry;
}

}
