In another Kata I came across a weird `sort` function to implement. We had to sort characters as usual ( 'A' before 'Z' and 'Z' before 'a' ) except that the `numbers` had to be sorted **after** the `letters` ( '0' after 'z') !!!

(After a couple of hours trying to solve this unusual-sorting-kata I discovered final tests used **usual** sort (digits  **before** letters :-)

So, the `unusualSort/unusual_sort` function you'll have to code will sort `letters` as usual, but will put `digits` (or one-digit-long `numbers` ) **after** `letters`.

## Examples
```python
unusual_sort(["a","z","b"])  # -> ["a","b","z"]  as usual
unusual_sort(["a","Z","B"])  # -> ["B","Z","a"]  as usual

//... but ...
unusual_sort(["1","z","a"])  # -> ["a","z","1"]
unusual_sort(["1","Z","a"])  # -> ["Z","a","1"]
unusual_sort([3,2,1"a","z","b"])  # -> ["a","b","z",1,2,3]
unusual_sort([3,"2",1,"a","c","b"])  # -> ["a","b","c",1,"2",3]
```
**Note**: `digits` will be sorted **after** "`same-digit-numbers`", eg: `1` is before `"1"`, `"2"` after `2`.
```python
unusual_sort([3,"2",1,"1","3",2])  # -> [1,"1",2,"2",3,"3"]
```

You may assume that **argument** will always be an `array/list` of **characters** or **one-digit-long numbers**.

```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 = 'import string\n\n\ndef unusual_sort(array):\n    #your code here\n    upper = sorted([i for i in array if i in list(string.ascii_uppercase)])\n    lower  = sorted([it for it in array if it in list(string.ascii_lowercase)])\n    intint = sorted([num for num in array if num in list(map(int,list(string.digits)))])\n    strints = sorted([e for e in array if e in list(string.digits)])\n    upper.extend(lower)\n    intint.extend(strints)\n    want = []\n    for i in intint:\n        if type(i) is not int:\n            want.append((int(i), i))\n        else:\n            want.append((i, i))\n    ans = [i[1] for i in sorted(want,key = lambda x: x[0])]\n    upper.extend(ans)\n\n    return upper'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'unusual_sort'
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: 9930