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.util.*;
public class C {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		int i,j,len,p,temp,total;
		HashSet<Integer>[] map = new HashSet[2000000];
		for (i=1;i<2000000;i++) {
			map[i] = new HashSet<Integer>();
			len = (int)Math.log10(i)+1;
			p = (int)Math.pow(10, len-1);
			temp = i;
			for (j=0;j<len-1;j++) {
				temp = (temp%10)*p+temp/10;
				if (temp>i && temp<=2000000)
					map[i].add(temp);
			}
		}
		for (i=1;i<=T;i++) {
			int a = in.nextInt();
			int b = in.nextInt();
			total = 0;
			for (j=a;j<b;j++) {
				for (Integer t : map[j]) {
					if (t>j && t<=b)
						total++;
				}
			}
			System.out.println("Case #"+i+": "+total);
		}
	}

}
