def is_palindrome(text: str):
    for i in range(len(text)):
        if text[i] != text[len(text) - 1 - i]:
            return False
    return True
from typing import List
def below_zero(operations: List[int]) -> bool:
    balance = 0
    for op in operations:
        balance += op
        if balance < 0:
            return True
    return False