백준 11021 JAVA

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

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        int t = Integer.parseInt(br.readLine());

        StringTokenizer st;
        for (int i = 0; i < t; i++) {
            st = new StringTokenizer(br.readLine(), " ");
            bw.write("Case #" + (i + 1) +": " + (Integer.parseInt(st.nextToken()) + Integer.parseInt(st.nextToken())));
            bw.newLine();
        }
        bw.flush();
    }
}