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 QC {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int[][] ROT = new int[2000001][7];
		for(int i=1; i<=2000000; i++) {
			int A = i;
			int pow10 = 1;
			while(A > 0) { pow10*=10; A/=10; }
			pow10 /= 10;
			A = i;
			int ix = 0;
			do {
				if(A < i)
					ROT[i][ix++] = A;
				A = pow10*(A%10)+A/10;
			} while(A != i);
		}
		
		int T = in.nextInt();
		for(int cas=0; cas<T; cas++) {
			int A = in.nextInt();
			int B = in.nextInt();
			long ans = 0;
			Set<Integer> U = new HashSet<Integer>();
			for(int i=A; i<=B; i++) {
				long cnt = 0;
				for(int j=0; j<7; j++) {
					if(ROT[i][j]<i && ROT[i][j]>=A && ROT[i][j]<=B)
						cnt++;
				}
				ans += cnt;
			}
			System.out.println("Case #"+(cas+1)+": "+ans);
		}
	}
}