import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package numbers;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;

public class Solution {

	public static void main(String[] args) throws IOException {
		
		
		BufferedReader br = new BufferedReader(new FileReader("C-large.in"));
		BufferedWriter wr = new BufferedWriter(new FileWriter("output"));
		
		Integer cases = Integer.valueOf(br.readLine());
		for (int caseNumber = 1; caseNumber<=cases; ++caseNumber){
			String[] line = br.readLine().split(" ");
			Integer A = Integer.valueOf(line[0]);
			Integer B = Integer.valueOf(line[1]);
			StringBuffer bf = new StringBuffer();
			bf.append("Case #");
			bf.append(caseNumber);
			bf.append(": ");
			
			if (A<11)
				A = 11;
			int counter = 0;
			for (int n=A; n<=B;++n){
				counter += findRecycled(n, B);
			}
			bf.append(counter);
			wr.write(bf.toString());
			wr.newLine();
			wr.flush();
		}

	}

	private static int findRecycled(int n, int limit) {
		
		int retVal = 0;
		HashSet<String> possibles = new HashSet<String>();
		String base = String.valueOf(n);
		for (int i=1; i<base.length();++i){
			String possibility = base.substring(i).concat(base.substring(0,i));
			possibles.add(possibility);
		}
		for (String possibility : possibles){
			int check = Integer.valueOf(possibility);
			if (check>n && check<=limit)
				++retVal;
		}
		return retVal;
	}

}
