import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import com.sun.org.apache.bcel.internal.generic.AALOAD;

import java.io.IOException;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class RecycledNum extends JamProblem {
    public static void main(String[] args) throws IOException {
        RecycledNum p = new RecycledNum();
        p.go();
    }

    @Override
    String solveCase(JamCase jamCase) {
        RecNCase ca = (RecNCase) jamCase;
        int res = 0;
        for (int n = ca.A; n < ca.B; n++) {
            String m = "";
            //print("n "+n);
            Set<Integer> bag = new HashSet<>();
            int length = intLength(n);
            for (int t = 1; t < length; t++) {
                int pow = (int) Math.pow(10, t);
                int pow2 = (int) Math.pow(10,length-t);
                int f = (n / pow);
                int s = n - (pow * f);
                int cand = f + (pow2 * s);
                //print("m " + cand);
                if (cand < ca.A || cand > ca.B || cand <= n) {
                    continue;
                }
                if (bag.contains(cand)) {
                    continue;
                }
                if (intLength(cand) != intLength(n)) {
                    continue;
                }
                res++;
                bag.add(cand);
                //print(""+ n+ " " + cand);
            }
        }
        return "" + res;
    }

    private void print(String m) {
        System.out.println(m);
    }

    private int intLength(int n) {
        return Integer.toString(n).length();
    }

    @Override
    JamCase parseCase(List<String> file, int line) {
        RecNCase ca = new RecNCase();
        ca.lineCount = 1;
        String s = file.get(line);
        int[] ints = JamUtil.parseIntList(s, 2);
        ca.A = ints[0];
        ca.B = ints[1];
        return ca;
    }
}

class RecNCase extends JamCase {
    int A, B;
}
