백준 - 2739번 구구단

코드

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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

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

        StringBuilder sb = new StringBuilder();

        for (int i = 1; i <= 9; i++) {
            sb.append(N).append(" * ").append(i).append(" = ").append(N * i).append("\n");
        }

        System.out.println(sb);
    }
}