import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.awt.Point;
import java.util.*;

public class Recycle {

    public static void main(String[] args) {
        Recycle r = new Recycle();
        Scanner in = new Scanner(System.in);
        int cases = in.nextInt();
        for (int i = 0; i < cases; i++) {
            System.out.printf("Case #%d: %d\n", i+1, r.solve(in));
        }
    }
    
    private int solve(Scanner in) {
	HashSet<Point> used = new HashSet<Point>();
	int A = in.nextInt();
	int B = in.nextInt();
	int count = 0;
	for (int i = A; i <= B; i++) {
	    String s = Integer.toString(i);
	    for (int k = 1; k < s.length(); k++) {
		String front = s.substring(0, k);
		String sub = s.substring(k);
		String reconstr = sub + front;
		if (reconstr.startsWith("0") || reconstr.equals(s)) continue;
		int reconstructed = Integer.parseInt(reconstr);
		if (reconstructed >= i) continue;
		if (used.contains(new Point(i, reconstructed))) continue;
		if (A <= reconstructed && reconstructed <= B) {
		    used.add(new Point(i, reconstructed));
		    count++;
		}
	    }
	}
	return count;
    }

}