eclipse下运行正常，到了赛码在线答题就提示Runtime Error

import java.io.*;
import java.util.*;

public class Main {

public static void main(String[] args) {


    while(true){
    Scanner sc = new Scanner(System.in);
    String str = sc.next();
    zhuanhuan(str);
    continue;
    }

}

public static void zhuanhuan(String str) {

    char[] c = str.toCharArray();
    int sum = 0;
    for (int i = 0; i < c.length; i++) {
        int in = c[i] - 97;
        int f = (int) Math.pow(26, c.length - 1 - i);
        sum += in * f;

        // System.out.println(in);
    }
    System.out.println(sum);

}

while(true){
死循环了，，，eclipse上一直等着你输入，所以没报错