說明:大數運算。
Java 版
import java.util.Scanner;
import java.math.BigInteger;
 
public class B115 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNext()) {
            BigInteger a = new BigInteger(in.next());
            String r = in.next();
            BigInteger b = new BigInteger(in.next());
            if(r.equals("*"))
                System.out.println(a.multiply(b));
            else
                System.out.println(a.divide(b));
        }
   }
}
Python 版 (2022.07)while True:
    try:
        a = int(input())
        op = input()
        b = int(input())
        if op == '*':
            print(int(a * b))
        else:
            print(int(a / b))
    except:
        break