## Overview
Resistors are electrical components marked with colorful stripes/bands to indicate both their resistance value in ohms and how tight a tolerance that value has. If you did my Resistor Color Codes kata, you wrote a function which took a string containing a resistor's band colors, and returned a string identifying the resistor's ohms and tolerance values.


Well, now you need that in reverse: The previous owner of your "Beyond-Ultimate Raspberry Pi Starter Kit" (as featured in my Fizz Buzz Cuckoo Clock kata) had emptied all the tiny labeled zip-lock bags of components into the box, so that for each resistor you need for a project, instead of looking for text on a label, you need to find one with the sequence of band colors that matches the ohms value you need.

## The resistor color codes
You can see this Wikipedia page for a colorful chart, but the basic resistor color codes are:

0: black, 1: brown, 2: red, 3: orange, 4: yellow, 5: green, 6: blue, 7: violet, 8: gray, 9: white

All resistors have at least three bands, with the first and second bands indicating the first two digits of the ohms value, and the third indicating the power of ten to multiply them by, for example a resistor with a value of 47 ohms, which equals 47 * 10^0 ohms, would have the three bands "yellow violet black".

Most resistors also have a fourth band indicating tolerance -- in an electronics kit like yours, the tolerance will always be 5%, which is indicated by a gold band. So in your kit, the 47-ohm resistor in the above paragraph would have the four bands "yellow violet black gold".

## Your mission
Your function will receive a string containing the ohms value you need, followed by a space and the word "ohms" (to avoid Codewars unicode headaches I'm just using the word instead of the ohms unicode symbol). The way an ohms value is formatted depends on the magnitude of the value:

* For resistors less than 1000 ohms, the ohms value is just formatted as the plain number. For example, with the 47-ohm resistor above, your function would receive the string `"47 ohms"`, and return the string `"yellow violet black gold".

* For resistors greater than or equal to 1000 ohms, but less than 1000000 ohms, the ohms value is divided by 1000, and has a lower-case "k" after it. For example, if your function received the string `"4.7k ohms"`, it would need to return the string `"yellow violet red gold"`.

* For resistors of 1000000 ohms or greater, the ohms value is divided by 1000000, and has an upper-case "M" after it. For example, if your function received the string `"1M ohms"`, it would need to return the string `"brown black green gold"`. 

Test case resistor values will all be between 10 ohms and 990M ohms.

## More examples, featuring some common resistor values from your kit
```
"10 ohms"        "brown black black gold"
"100 ohms"       "brown black brown gold"
"220 ohms"       "red red brown gold"
"330 ohms"       "orange orange brown gold"
"470 ohms"       "yellow violet brown gold"
"680 ohms"       "blue gray brown gold"
"1k ohms"        "brown black red gold"
"10k ohms"       "brown black orange gold"
"22k ohms"       "red red orange gold"
"47k ohms"       "yellow violet orange gold"
"100k ohms"      "brown black yellow gold"
"330k ohms"      "orange orange yellow gold"
"2M ohms"        "red black green gold"
```

Have fun!

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

def _disabled_input(*args, **kwargs):
    raise RuntimeError("input() is disabled in callable mode")
builtins.input = _disabled_input

ns = {"__name__": "__judge__"}  # prevent if __name__ == "__main__" blocks
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = "def encode_resistor_colors(ohms_string):\n    s = str(get_num_ohms(ohms_string))\n    ohms = s[:2]\n    tolerance = str(len(s[2:]))\n    color_bands = [ get_color(ohms[0]), get_color(ohms[1]), get_color(tolerance), 'gold' ]\n    return ' '.join(color_bands)\n\n\ndef get_num_ohms(s):\n    n = s.split(' ')[0]\n    multiplier = 1000 if n[-1] == 'k' else 1000000 if n[-1] == 'M' else 1\n    f = float(n[:-1]) * multiplier if  multiplier > 1 else float(n)\n    return int(f)\n\ndef get_color(n):\n    color_map = {\n        '0': 'black',\n        '1': 'brown',\n        '2': 'red',\n        '3': 'orange',\n        '4': 'yellow',\n        '5': 'green',\n        '6': 'blue',\n        '7': 'violet',\n        '8': 'gray',\n        '9': 'white'\n    }\n    return color_map[n]\n"
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'encode_resistor_colors'
if _fn_name:
    if "Solution" in ns:
        try:
            _obj = ns["Solution"]()
            if hasattr(_obj, _fn_name):
                _target = getattr(_obj, _fn_name)
        except Exception:
            _target = None
    if _target is None and _fn_name in ns and callable(ns[_fn_name]):
        _target = ns[_fn_name]
# Fallback: if there's exactly one user-defined function, use it
if _target is None:
    _cands = [v for k, v in ns.items() if callable(v) and getattr(v, "__module__", "") in ("__judge__", "__main__")]
    _user_funcs = [c for c in _cands if getattr(c, "__name__", "").startswith("_") is False]
    if len(_user_funcs) == 1:
        _target = _user_funcs[0]
if _target is None:
    raise RuntimeError(f"Could not resolve callable '{_fn_name}'")

_raw = sys.stdin.read().strip()
if _raw:
    _parsed = json.loads(_raw)
    if isinstance(_parsed, dict):
        _kwargs = _parsed.get("kwargs", {})
        _args = _parsed.get("args", [])
    else:
        _args, _kwargs = _parsed, {}
else:
    _args, _kwargs = [], {}
if not isinstance(_args, (list, tuple)):
    _args = [_args]
_res = _target(*_args, **_kwargs)
try:
    sys.stdout.write(repr(_res) + "\n")
except Exception:
    pass

```

Measured memory_bytes: 6009