NOTE: It is recommended you complete [Introduction to Esolangs](https://www.codewars.com/kata/esolang-interpreters-number-1-introduction-to-esolangs-and-my-first-interpreter-ministringfuck/) or [MiniBitFlip](https://www.codewars.com/kata/esolang-minibitflip/) before solving this one.
Task:
Make an interpreter for an esoteric language called Ticker. Ticker is a descendant of [Tick](https://www.codewars.com/kata/esolang-tick). Your language has the following commands:

`>`: increment the selector by 1

`<`: decrement the selector by 1

`*`: add the ascii value of selected cell to the output tape

`+`: increment selected cell data by 1. If 256, then it is 0

`-`: increment selected cell data by -1. If less than 0, then 255

`/`: set selected cell data to 0

`!`: add new data cell to the end of the array

You start with selector at `0` and one cell with a value of `0`. If selector goes out of bounds, assume 0 for that cell but do not add it to the memory. If a + or - is being made do not change the value of the assumed cell. It will always stay 0 unless it is added to the memory

In other words:

```
data: start 0 end
selector:   ^
data start 1 2 4 end
selector:        ^
Assume that cell is zero.
```

Examples:
Consider the following program:

```python
'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++*/'
```

It's output is this:

```python
'Hello World!'
```

This is made just by using 1 data cell.

Example using multiple data cells:

```python
'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++*!>'
```

And it's output is still:

```python
'Hello World!'
```

A more efficient example:

```python
'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++**!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*<<*>>!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*<<<<*!>>>>>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++*'
```

Which still returns the classic:

```python
'Hello World!'
```

Other characters are ingnored and therefore can serve as comments.

After you're done, fell free to make translations and to discuss this kata.

```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 interpreter(tape):\n    memory, ptr, output = {0: 0}, 0, ""\n    \n    for command in tape:\n        if   command == ">":  ptr += 1\n        elif command == "<":  ptr -= 1\n        elif command == "+":\n            if memory.get(ptr) != None:\n                memory[ptr] = (memory[ptr] + 1) % 256\n        elif command == "-":\n            if memory.get(ptr) != None:\n                memory[ptr] = (memory[ptr] - 1) % 256\n        elif command == "/":\n            if memory.get(ptr) != None:\n                memory[ptr] = 0\n        elif command == "!":  memory[len(memory)] = 0\n        elif command == "*":  output += chr(memory.get(ptr, 0))\n    \n    return output'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'interpreter'
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: 5905