#!/usr/bin/env python3
# -*- encoding: utf-8 -*-

from typing import Union

Numeric = Union[int, float]


def format_power10(count: Numeric, intervals=1000, cutoff=2000, labels=',k,M,G,T,P,E,Z,Y'.split(','), suffix='B') -> str:
    times_cut = 0
    while count > cutoff:
        count /= intervals
        times_cut += 1
    return '%.1f %s%s' % (count, labels[times_cut], suffix)


def format_power2(count: Numeric, intervals=1024, cutoff=2048, labels=',ki,Mi,Gi,Ti,Pi,Ei,Zi,Yi'.split(','), suffix='B') -> str:
    return format_power10(count, intervals, cutoff, labels, suffix)