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 y2012;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.BitSet;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {
    static public void main(String args[]) throws IOException {
         System.setIn(new FileInputStream("src/y2012/C-large.in"));
        // System.setIn(new FileInputStream("src/y2012/RecycledNumbers.in"));
//        System.setIn(new FileInputStream("src/y2012/C-small-attempt0.in"));
        BufferedReader cin = new BufferedReader(new InputStreamReader(System.in));
         BufferedWriter wr = new BufferedWriter(new FileWriter("src/y2012/C-large.out"));
//        BufferedWriter wr = new BufferedWriter(new FileWriter("src/y2012/C-small-attempt0.out"));
        int nTests = Integer.valueOf(cin.readLine());
        String line;
        int tid = 0;
        while ((line = cin.readLine()) != null) {
            String[] sa = line.split("\\s+");
            int A = Integer.parseInt(sa[0]);
            int B = Integer.parseInt(sa[1]);
            int rlst = 0;
            BitSet bits = new BitSet(B);
            for (int i = A; i <= B; i++)
                bits.set(i, true);
            for (int i = A; i <= B; i++) {
                if (bits.get(i)) {
                    char cs[] = new String().valueOf(i).toCharArray();
                    int n = cs.length;
                    Set<Integer> set = new HashSet<Integer>();
                    set.add(i);
                    for (int j = 0; j < n - 1; j++) {
                        String s = new String(Arrays.copyOfRange(cs, 1, n)) + cs[0];
                        cs = s.toCharArray();
                        int k = Integer.valueOf(s);
                        if (s.charAt(0) != 0 && A <= k && k <= B) {
                            set.add(k);
                            bits.set(k, false);
                        }
                    }
                    rlst += set.size() * (set.size() - 1) / 2;
                }
            }
            ++tid;
            wr.write("Case #" + tid + ": " + rlst + "\n");
        }
        wr.close();
        cin.close();
    }
}