Custom Exception

Lab Python Advanced 30 points

Create class InsufficientFunds(Exception). Write withdraw(balance, amount) that raises it with the message need X more when the amount exceeds the balance. Start with balance 100, read withdrawals and print the new balance or the error.

Input

Line 1: n. Then n amounts.

Output

n lines.

Example

Input

Output

70
need 20 more
0

Sample input available Sample output available

Editor

Python

Hints

A custom exception is a class that inherits from Exception.

Solution explanation

Custom exception types let callers catch exactly the failures that belong to your code.

Show solution

class InsufficientFunds(Exception):
    pass


def withdraw(balance, amount):
    if amount > balance:
        raise InsufficientFunds(f"need {amount - balance} more")
    return balance - amount


balance = 100
for _ in range(int(input())):
    try:
        balance = withdraw(balance, int(input()))
        print(balance)
    except InsufficientFunds as err:
        print(err)

Output

Answer