import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

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

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

public class WaterSheds extends JamProblem {

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

    Character[][] res;
    WSCase cs;
    char curr;

    @Override
    String solveCase(JamCase jamCase) {
        cs = (WSCase) jamCase;
        curr = 'a';
        res = new Character[cs.h][cs.w];
        for (int y = 0; y < cs.h; y++) {
            for (int x = 0; x < cs.w; x++) {
                res[y][x] = ' ';
            }
        }
        for (int y = 0; y < cs.h; y++) {
            for (int x = 0; x < cs.w; x++) {
                res[y][x] = update(y, x);
            }
        }
        return "\n" + JamUtil.printTable(res);  //To change body of implemented methods use File | Settings | File Templates.
    }

    private char update(int y, int x) {
        if (res[y][x] != ' ') {
            return res[y][x];
        }
        int min = cs.table[y][x];
        int dir = -1;
        if (y > 0) {
            int curr = cs.table[y - 1][x];
            if (curr < min) {
                min = curr;
                dir = 0;
            }
        }
        if (x > 0) {
            int curr = cs.table[y][x - 1];
            if (curr < min) {
                min = curr;
                dir = 1;
            }
        }
        if (x < cs.w - 1) {
            int curr = cs.table[y][x + 1];
            if (curr < min) {
                min = curr;
                dir = 2;
            }
        }
        if (y < cs.h - 1) {
            int curr = cs.table[y + 1][x];
            if (curr < min) {
                min = curr;
                dir = 3;
            }
        }
        if (dir == -1) {
            return res[y][x] = curr++;
        } else {
            switch (dir) {
                case 0:
                    return res[y][x] = update(y - 1, x);
                case 1:
                    return res[y][x] = update(y, x - 1);
                case 2:
                    return res[y][x] = update(y, x + 1);
                case 3:
                    return res[y][x] = update(y + 1, x);
                default:
                    throw new RuntimeException();
            }
        }
    }

    @Override
    JamCase parseCase(List<String> file, int line) {
        int i = line;
        String firstLine = file.get(i++);
        int[] pair = JamUtil.parseIntList(firstLine, 2);
        WSCase cas = new WSCase();
        cas.h = pair[0];
        cas.w = pair[1];
        cas.lineCount = cas.h + 1;
        cas.table = new int[cas.h][];
        for (int ih = 0; ih < cas.h; ih++) {
            cas.table[ih] = JamUtil.parseIntList(file.get(i++), cas.w);
        }
        return cas;
    }
}

class WSCase extends JamCase {
    int w, h;
    int[][] table;
}
