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

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

package com.google.codejam;

public class RecycledNumbers {
	public int solve(int[] n){
		int res = 0;
		int len = getLen(n[0]);
		int[] sh = new int[len-1];
		for (int i = n[0]; i <= n[1]; i++) {
			for (int j = 1; j < len; j++) {
				int ni = shift(i, j, len);
				sh[j-1] = ni; 
				if(ni > i && ni <= n[1]) {
					boolean dup = false;
					for (int k = 0; k < j-1; k++) {
						if(sh[k] == ni) dup = true;
					}
					if(!dup) res++; 
				}
			}
		}
		return res;
	}

	private int shift(int i, int j, int len) {
		int ex = i % ((int)Math.pow(10, j));
		int div = i / (int)Math.pow(10, j);
		return ex * (int)Math.pow(10, len-j) + div;
	}

	private int getLen(int n) {
		int c = 0;
		while(n > 0){
			n /= 10;
			c++;
		}
		return c;
	}
}
