import string


def get_number(text):
    """
    Return the number at the start of text, as a string.

    text -- string starting with a number
    """
    char = 0
    number = ""
    while char < len(text):
        if text[char] in string.digits + "-":
            number = number + text[char]
            char += 1
        else:
            break
    return number