/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}


public class ProbQ3 {
	public static void main(String[] args) {

		String fileContent = CodeJamTools.readFileAsString("c:\\temp\\inputQ3.txt");
		String[] rows = fileContent.split("\\n");
		int T = new Integer(rows[0]);
		String output = "";

		int counter = 1;

		for (int i=0; i<T; i++) {
			System.out.println(rows[counter]);
                        long[] data = CodeJamTools.readLongsFromRow(rows[counter]);
			counter++;

                        long A = data[0];
                        long B = data[1];

                        long c = 0;

                        for (long j=A; j<B; j++) {
                            for (long k=j+1; k<=B; k++) {
                                c += isValid(j,k);
                            }
                        }

			output += "Case #"+(i+1)+": ";
			output += c;
                        output += "\n";
		}

		System.out.print(output);
		CodeJamTools.writeStringToFile("C:\\Users\\Conny\\Documents\\conny\\own files\\java_workspace\\codejam2\\src\\outputQ3.txt", output);
	}


        private static long isValid(long n, long m) {
            String ns = ""+n;
            String ms = ""+m;
            for (int i=1; i<ns.length(); i++) {
                if (ns.equals(ms.substring(i)+ms.substring(0,i))) {
                    return 1;
                }
            }
            return 0;
        }
}
