Imagine if there were no order of operations. Instead, you would do the problem from left to right. For example, the equation `$a +b  *c /d$` would become `$(((a+b)*c)//d)$` (`Math.floor(((a+b)*c)/d)` in JS). Return `None`/`null` (depending on your language) if the equation is `""`.

### Task:

Given an equation with a random amount of spaces greater than or equal to zero between each number and operation, return the result without order of operations. Note that if two numbers are spaces apart, act as if they were one number: `1   3` = `13`. However, if given something `% 0` or something `/ 0`, return `None/null`.

More about order of operations: [here](https://en.wikipedia.org/wiki/Order_of_operations#:~:text=In%20the%20United%20States%2C%20the,Excuse%20My%20Dear%20Aunt%20Sally%22.)

### Key:

- `^` represents `**`

```if:python
- `/` represents `//` or `math.floor` because the result will always be an integer
```

```if:javascript
- `/` should always be rounded down(`Math.floor`) because the result will always be an integer
```

### Operations allowed: 
 `+, -, * , /, ^, %`

### Example:

`no_order(2 + 3 - 4 * 1 ^ 3) returns 1`

because:
```
  2 + 3 - 4 * 1 ^ 3
= 2 + 3 - 4 * 1 ^ 3
= 5 - 4 * 1 ^ 3
= 1 * 1 ^ 3
= 1 ^ 3
= 1
```

```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 is_digit(p):\n    return p >= \'0\' and p <= \'9\'\n    \ndef is_sign(p):\n    return p in \'+-*/^%\'\n\ndef calc(sign, a, b):\n    try:\n        if sign == \'+\':\n            return a+b\n        elif sign == \'-\':\n            return a-b\n        elif sign == \'*\':\n            return a*b\n        elif sign == \'/\':\n            return a//b\n        elif sign == \'^\':\n            return a**b\n        else:\n            return a%b\n    except:\n        return None\n\ndef no_order(equation):\n    left, right = 0, ""\n    sign = \'+\'\n    for e in equation:\n        if is_sign(e):\n            left = calc(sign, left, int(right))\n            right = ""\n            if left == None:\n                return None\n            sign = e\n        elif is_digit(e):\n            right += e\n        elif e != \' \':\n            return None\n    return calc(sign, left, int(right))'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'no_order'
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: 5700