11022 : A + B - 8

import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {

		Scanner sc = new Scanner(System.in);
		int tc = sc.nextInt();
		for (int i = 1; i <= tc; i++) {
			int num1 = sc.nextInt();
			int num2 = sc.nextInt();
			int sum = num1 + num2;
			System.out.println("Case #"+i+": "+num1+" + "+num2+" = "+sum);
		}
	}
}