# Task

Determine the client's membership level based on the invested `amount` of money and the given thresholds for membership levels.

There are four membership levels (from highest to lowest): `Platinum, Gold, Silver, Bronze`

The minimum investment is the threshold limit for `Bronze` membership. If the given amount is less than the `Bronze` treshold limit return `Not a member`.

A client belongs to a membership level when his invested amount is greater than or equal the level's threshold amount.

# Examples:
```
|--------+----------+------+--------+--------+--------------+------------------|
| Amount | Platinum | Gold | Silver | Bronze | Result       | Explanations     |
|--------+----------+------+--------+--------+--------------+------------------|
|   7000 |    10000 | 8000 |   6000 |   4000 | Silver       | Amount >= Silver |
|   3000 |    10000 | 8000 |   6000 |   5000 | Not a member | Amount < Bronze  |
|   8000 |    12000 | 8000 |   7000 |   5000 | Gold         | Amount >= Gold   |
|--------+----------+------+--------+--------+--------------+------------------|
```

# Restrictions

1. The first line of your code has to be `def membership(amount, platinum, gold, silver, bronze):`
2. Your code except for the firt line mustn't contain the words `platinum, gold, silver, bronze` or they reversed forms (e.g. `dlog`) or any string which contains these words or they reversed forms. (The check is **case-insensitive**.)
3. Must not contain: `+, %, {, }`.

# Disclaimer

This kata is about creativity not proper coding style. Your colleagues/boss won't like you if you make production code like this. :)

#### Don't forget to rate the kata after you finish it. :)

Happy coding!

suic

```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 membership(amount, platinum, gold, silver, bronze):\n    ordered = reversed(sorted((v, k) for k, v in locals().items() if k != 'amount'))\n    return next((level.capitalize() for threshold, level in ordered if amount >= threshold), 'Not a member')"
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'membership'
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: 6519