[11021/JAVA] A+B - 7

import java.util.Scanner;
 
public class Main {
	public static void main(String args[]) {
 
		Scanner in = new Scanner(System.in);
 
		int T = in.nextInt();
 
		for (int i = 1; i <= T; i++) {
			int a = in.nextInt();
			int b = in.nextInt();
 
			System.out.println("Case #" + i + ": " + (a + b));
		}
 
		in.close();
	}
}