import random


def get_numerify(template='', symbol='#', **kwargs):
    """ Generate number string from templates.

    :return str:

    ::
        print get_numerify('####-##')  # -> 2345-23

    """
    return ''.join(
        (str(random.randint(0, 10)) if c == '#' else c)
        for c in template
    )