import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}


import java.io.*;
import java.util.*;

/**
 *
 * @author Hilos
 */
public class ProblemC {

    public static BufferedWriter bw;
    public static BufferedReader br;

    public static void main(String[] args) {
        try {
            String filename = "C-large";
            br = new BufferedReader(new FileReader("E:\\Downloads\\" + filename + ".in"));
            bw = new BufferedWriter(new FileWriter("E:\\Downloads\\" + filename + ".out"));

            int caseCount = Integer.parseInt(br.readLine());

            for (int c = 0; c < caseCount; c++) {
                String[] lineParts = br.readLine().split(" ");

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


                SolveCase(c + 1, A, B);
            }


        } catch (Exception exc) {
            System.out.println(exc.toString());
        }
    }

    public static void SolveCase(int caseNumber, int A, int B) throws Exception {
        int totalRecycledPairs = 0;

        HashSet uniqueNumbers = new HashSet();
        for (int i = A; i <= B; i++) {
            String strVal = String.valueOf(i);

            if (!uniqueNumbers.contains(i)) {

                int recycles = 0;
                String nextStr = strVal;

                do {
                    nextStr = leftShift(nextStr);
                    int nextInt = Integer.parseInt(nextStr);
                    if (A <= nextInt && nextInt <= B) {
                        uniqueNumbers.add(nextInt);
                        recycles++;
                    }
                } while (!nextStr.equals(strVal));

                totalRecycledPairs += NchooseK(recycles, 2);
            }
        }

        bw.write("Case #" + caseNumber + ": " + totalRecycledPairs + "\n");
        bw.flush();
    }

    public static String leftShift(String str) {
        return str.substring(1) + str.charAt(0);
    }

    public static int NchooseK(int n, int k) {
        return factorial(n) / (factorial(k) * factorial(n - k));
    }

    public static int factorial(int i) {
        int result = 1;
        while (i > 1) {
            result *= i;
            i--;
        }
        return result;
    }
}
