import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringBuilder sb = new StringBuilder();
int T = Integer.parseInt(br.readLine());
for (int i = 0; i < T; i++) {
StringTokenizer st = new StringTokenizer(br.readLine(), " ");
int A = Integer.parseInt(st.nextToken());
int B = Integer.parseInt(st.nextToken());
sb.append("Case #").append(i + 1).append(": ").append(A + B).append("\n");
}
System.out.print(sb);
br.close();
}
}
이쯤하면 사골이 되어버린 A+B 시리즈 🥲