###Introduction

The [I Ching](https://en.wikipedia.org/wiki/I_Ching) (Yijing, or Book of Changes) is an ancient Chinese book of sixty-four hexagrams. 
A hexagram is a figure composed of six stacked horizontal lines, where each line is either Yang (an unbroken line) or Yin (a broken line):
```
---------    ---- ----    ---------    
---- ----    ---- ----    ---------    
---- ----    ---- ----    ---------    
---------    ---- ----    ---- ----    
---------    ---------    ---- ----    
---- ----    ---- ----    ---------    
```
The book is commonly used as an oracle. After asking it a question about one's present scenario,
each line is determined by random methods to be Yang or Yin. The resulting hexagram is then interpreted by the querent as a symbol of their current situation, and how it might unfold.

This kata will consult the I Ching using the three coin method.

###Instructions

A coin is flipped three times and lands heads
or tails. The three results are used to
determine a line as being either:
```
3 tails          ----x----  Yin (Moving Line*)
2 tails 1 heads  ---------  Yang
1 tails 2 heads  ---- ----  Yin 
3 heads          ----o----  Yang (Moving Line*)

*See bottom of description if curious.
```
This process is repeated six times to determine
each line of the hexagram. The results of these
operations are then stored in a 2D Array like so:
In each array the first index will always be the number of the line ('one' is the bottom line, and 'six' the top), and the other three values will be the results of the coin flips that belong to that line as heads ('h') and tails ('t').

Write a function that will take a 2D Array like the above as argument and return its hexagram as a string. Each line of the hexagram should begin on a new line.

should return:
```
---------
---------
----x----
----o----
---- ----
---- ----
```
You are welcome to consult your new oracle program with a question before pressing submit. You can compare your result [here](http://www.ichingfortune.com/hexagrams.php). The last test case is random and can be used for your query.

*[1] A Moving Line is a Yang line that will change
to Yin or vice versa. The hexagram made by the coin
throws represents the querent's current situation,
and the hexagram that results from changing its
moving lines represents their upcoming situation.*

```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 = 'nums = ["six", "five", "four", "three", "two", "one"]\nlines = {"hhh": "----o----", "hht": "---- ----", "htt": "---------", "ttt": "----x----"}\n\ndef oracle(arr):\n    return "\\n".join(lines["".join(sorted(l[1:]))] for l in sorted(arr, key=lambda l: nums.index(l[0])))\n'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'oracle'
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: 6162