import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package recycledNumbers;

public class RecycledPair {

	private int n;
	private int m;

	public RecycledPair(int n, int m) {
		this.n = n;
		this.m = m;
	}

	/**
	 * @return the n
	 */
	public int getN() {
		return n;
	}

	/**
	 * @return the m
	 */
	public int getM() {
		return m;
	}

	@Override
	public boolean equals(Object o) {

		if (!(o instanceof RecycledPair)) {
			throw new ClassCastException("Invalid object");
		}

		RecycledPair rp = (RecycledPair) o;

		if ((this.getM() == rp.getM() && this.getN() == rp.getN())
				|| (this.getM() == rp.getN() && this.getN() == rp.getM())) {
			return true;
		}

		return false;

	}

	@Override
	public int hashCode() {
		if (this.getM() < this.getN()) {
			return this.getM() + 13 * this.getN();
		} else {
			return this.getN() + 13 * this.getM();
		}
	}

}
