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import java.io.*;
import java.lang.*;
public class question09 {

    public static void main(String args[])throws IOException {
     BufferedReader buf=new BufferedReader(new InputStreamReader(System.in));
     System.out.print("請輸入美金薪水:");
     double us=Double.parseDouble(buf.readLine());
     System.out.print("請輸入匯率:");
     double rate=Double.parseDouble(buf.readLine());
     double nt=us*rate*10;
     nt=Math.round(nt);
     nt=nt/10;
     System.out.println("台幣薪水為:"+nt);     
    }