Hello, I tried many times, but do not know where is the problem, I wrote java and run on IDE it seems OK, but every time when I submitted it can not be accepted. Would you please give me some help. Thank you so much!

import java.util.*;
public class SumAllInt1068 {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int d = sc.nextInt();
        int f = sc.nextInt();
        int e = a+b+c+d+f;
        System.out.println(e);

    }

}