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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class C {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		BufferedReader br= new BufferedReader(new FileReader(args[0]));
		BufferedWriter bw= new BufferedWriter(new FileWriter(args[0]+".out"));
		String line= br.readLine();
		int cases= Integer.parseInt(line);
		for (int i= 0; i != cases; i++) {
			Scanner sc= new Scanner(br.readLine());
			bw.write("Case #"+(i+1)+": "+recycle(sc.nextInt(), sc.nextInt())+"\n");
		}
		br.close();
		bw.close();
	}
	
	public static int recycle(int a, int b) {
		int pairs= 0;
		for (int n= a; n != b; n++) {
			char[] num= (""+n).toCharArray();
			for (int i= 0; i != num.length-1; i++) {
				char[] rec= new char[num.length];
				rec[0]= num[num.length-1];	// put last digit at beginning
				for (int j= 0; j != num.length-1; j++) rec[j+1]= num[j];
				num= rec;
				int m= Integer.parseInt(new String(num));
				if (m > n && m <= b) {
					pairs++;
					//System.out.println(q+" "+n);
				}
			}
		}
		return pairs;
	}

}
