This kata is  blatantly copied from  inspired by This Kata
Welcome

this is the second in the series of the string iterations kata!

Here we go!

---------------------------------------------------------------------------------

We have a string s

Let's say you start with this: "String"

The first thing you do is reverse it: "gnirtS"

Then you will take the string from the 1st position and reverse it again: "gStrin"

Then you will take the string from the 2nd position and reverse it again: "gSnirt"

Then you will take the string from the 3rd position and reverse it again: "gSntri"

Continue this pattern until you have done every single position, and then you will return the string you have created. For this particular string, you would return: 
"gSntir"

now,

The Task:

In this kata, we also have a number x

take that reversal function, and apply it to the string x times.


return the result of the string after applying the reversal function to it x times.

    example where s = "String" and x = 3:

    after 0 iteration  s = "String"
    after 1 iteration  s = "gSntir"
    after 2 iterations s = "rgiStn"
    after 3 iterations s = "nrtgSi"
    
    so you would return "nrtgSi".

 Note 

String lengths may exceed 2 million


x exceeds a billion


be read to optimize



if this is too hard, go here https://www.codewars.com/kata/string-%3E-n-iterations-%3E-string/java

```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 string_func(s, x):\n    len_s = len(s)\n    arr = list(s)\n    mapping = []\n    correct_seq = list(range(len_s))\n    changed_seq = correct_seq[:]\n\n    # Make index mapping\n    for i in range(int(len_s / 2 + 0.5)):  # the result of placing the indexes\n        mapping.append(len_s - i - 1)      # of the once applied "reversal function"\n        mapping.append(i)\n    if len_s % 2 != 0:\n        mapping.pop()\n\n    # Reduce x\n    for div in range(1, len_s + 1):                      # take a remainder of the division\n        changed_seq = [changed_seq[i] for i in mapping]  # by the distance between repetitions\n        if changed_seq == correct_seq:\n            x %= div\n            break\n\n    while x:\n        arr = [arr[i] for i in mapping]\n        x -= 1\n\n    return \'\'.join(arr)'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'string_func'
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: 7692