import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    double d= scanner.nextDouble();

    //write your code here......

    int i = (int)(d+0.5);

    System.out.println(i);
}

}

强转之后就只取数字的整数部分,所以在强转哪里,这里把d+0.5,如果此时d的小数位<0.4,如14.99,此时i=14,如果此时d的小数位>0.5,如15.09,此时i=15