In the world of birding there are four-letter codes for the common names of birds. These codes are created by some simple rules:

* If the bird's name has only one word, the code takes the first four letters of that word. 
* If the name is made up of two words, the code takes the first two letters of each word.
* If the name is made up of three words, the code is created by taking the first letter from the first two words and the first two letters from the third word.
* If the name is four words long, the code uses the first letter from all the words.

*(There are other ways that codes are created, but this Kata will only use the four rules listed above)*

Complete the function that takes an array of strings of common bird names from North America, and create the codes for those names based on the rules above. The function should return an array of the codes in the same order in which the input names were presented.

Additional considertations:

* The four-letter codes  in the returned array should be in UPPER CASE.
* If a common name has a hyphen/dash, it should be considered a space. 

## Example

If the input array is: `["Black-Capped Chickadee", "Common Tern"]`

The return array would be: `["BCCH", "COTE"]`

```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 bird_code(arr):\n    arr1=[s.replace('-',' ') for s in arr]\n    res=[]\n    for s in arr1:\n        arr2=s.split(' ')\n        if len(arr2)==1:\n            res.append(arr2[0][:4].upper())\n        elif len(arr2)==2:\n            res.append(arr2[0][:2].upper()+arr2[1][:2].upper())\n        elif len(arr2)==3:\n            res.append(arr2[0][0].upper()+arr2[1][0].upper()+arr2[2][:2].upper())\n        else:\n             res.append(arr2[0][0].upper()+arr2[1][0].upper()+arr2[2][0].upper()+arr2[3][0].upper())\n    return res"
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'bird_code'
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: 6953