Problem:
Score : 100 points

Problem Statement

Compute A \times B.

Constraints

1 \leq A \leq 100

1 \leq B \leq 100

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the value A \times B as an integer.

Sample Input 1

2 5

Sample Output 1

10

We have 2 \times 5 = 10.

Sample Input 2

100 100

Sample Output 2

10000

Solution in Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.StreamTokenizer;
public class Main {
    public static void main(String[] args) throws IOException {
        int a, b;
        StreamTokenizer in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));

        PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));

        while (in.nextToken() != StreamTokenizer.TT_EOF)
        // in.nextToken()读下一个标记，StreamTokenizer.TT_EOF是个参数EOF
        {
            a = (int) in.nval;
            in.nextToken();
            b = (int) in.nval;
            out.println(a + b);
        }
        out.flush();// 刷新缓冲区，否则a+b会留在缓冲区
    }
}