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.IOException;
import java.io.InputStreamReader;

public class Number {
	public static void main(String[] args) throws IOException {
		BufferedReader s = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(s.readLine());
		for (int i = 1; i <= t; i++){
			String[] a = s.readLine().split(" ");
			int A = Integer.parseInt(a[0]);
			int B = Integer.parseInt(a[1]);
			int temp = 0;
			int result = 0;
			
			for (int j = A; j < B; j++) {
				String str = "" + j ;
				int n = str.length();
				for (int k = 1; k < n; k++) {
					str = "" + str.charAt(n-1) + str.substring(0, n-1);
					temp = Integer.parseInt(str);
					if (temp > j && temp <= B)
						result++;
				}
			}
			System.out.println("Case #"+ i + ": "+ result);
		}
	}
}