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package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

import java.util.*;

public class RecycledNumbers{
	
	static HashSet<String> hs;
	public static int single(int n, int[] digits){
		int i = 0;
		while(n>0){
			digits[i] = n%10;
			n = n/10;
			i++;
		}
		return i;
	} 	
	
	public static int toNumber(int[] d){
		int n = 0;
		for(int i = d.length-1; i>=0; i--){
			n = (n*10)+d[i];
		}		
		return n;
	}
	
	public static int pairs(int nd, int[] d, int ja, int m){
		int total = 0;
		int last = nd -1;
	
		for(int ni = 0; ni<last; ni++){
			//System.out.println("Moving "+d[ni]);
			int[] arr = new int[nd];
			int pa  = 0;
			for(int i = ni+1; i< nd; i++){
				arr[pa] = d[i];
				pa++;
			}
			for(int i = 0; i<=ni; i++){
				arr[pa] = d[i];
				pa++;
			}
			//System.out.println("Array "+Arrays.toString(arr));
			int nn = toNumber(arr);
			//System.out.println("New number "+nn);
			if((nn>ja) && nn <= m){
				total++;
				hs.add(ja+","+nn);		
			}
			
		}
		
		return total;
	}

	public static int solve(int a, int b){
		String sa = a+"";
		String sb = b+"";
		hs =  new HashSet<String>();
		int la = sa.length();
		int lb = sb.length();
		if(la == 1)
			return 0;
		int[] digitsa  = new int[7];
		
		int[] digitsb  = new int[7];
		int ndigits = single(a, digitsa);
		single(b, digitsb);
		int  count  = 0;
		for(int ja =a; ja < b; ja++){
			int[] digitsja  = new int[7];
//			System.out.println("Checking "+ja);
			single(ja, digitsja);
			int npa = pairs(ndigits, digitsja, ja, b );
			
			count+=npa;	
			if(npa > 0){
	//			System.out.println("j "+ja+" npa "+npa);
			}
		}
		//System.out.println(count);
		return hs.size();
	}
	
	public static void main(String args[]){
		Scanner s = new Scanner(System.in);
		int T = s.nextInt();
		
		for(int i = 0; i<T; i++){
			
			int a, b;
			a = s.nextInt();
			b = s.nextInt();
			
			System.out.println("Case #"+(i+1)+": "+solve(a, b));
			
		}

	}
}