取近似值，四舍五入

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

public class Main{
    public static void main(String[] args){
        try(BufferedReader br = 
                    new BufferedReader(new InputStreamReader(System.in))){
            String str = null;
            while((str = br.readLine()) != null){
               float f = Float.parseFloat(str);
               System.out.println(Math.round(f));
            }
        }catch(IOException e){
            e.printStackTrace();
        }
    }
}