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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();

    }

}

public class ProblemC extends FileWrapper {

	private int A[] = null;
	private int B[] = null;
	private int digt[] = null;
	
	public ProblemC(String fileName) {
		this.processInput(fileName);
		this.calculate();
		this.processOutput(OUTPUT);
	}

	@Override
	protected void processInput(String fileName) {
		try {
			this.openReadFile(fileName);
			this.caseNum = Integer.parseInt(this.readLine());
			this.output = new String[this.caseNum];
			this.A = new int[this.caseNum];
			this.B = new int[this.caseNum];
			this.digt = new int[this.caseNum];
			for (int i = 0; i < this.caseNum; i++) {
				String elem[] = this.readLine().split(" ");
				this.A[i] = Integer.parseInt(elem[0]);
				this.B[i] = Integer.parseInt(elem[1]);
				this.digt[i] = elem[0].length()-1;
			}
			this.closeReadFile();
		} catch (Exception e) {
		}
	}

	@Override
	protected void calculate() {
		for (int i=0; i<this.caseNum; i++) {
			int total = 0;
			this.output[i] = CASE + (i+1) + ": ";
			if (this.digt[i] == 0) {
				this.output[i] += total;
				continue;
			}
			int div = 10;
			for (int x=1; x<this.digt[i]; x++) {
				div *= 10;
			}
			for (int j=A[i]; j<B[i]; j++) {
				int value = j;
				for (int x=0; x<this.digt[i]; x++) {
					value = value%div*10+value/div;
					if (value>j && value<=B[i]) {
						total++;
					}else if (value==j) {
						break;
					}
				}
			}
			this.output[i] += total;
		}
	}

	public static void main(String argv[]) {
		if (argv.length > 0) {
			new ProblemC(argv[0]);
		} else {
			new ProblemC("C-small-attempt0.in");
		}
	}

}