Check if given chord is minor or major.

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Rules:

1. Basic minor/major chord have three elements.

2. Chord is minor when interval between first and second element equals 3 and between second and third -> 4.

3. Chord is major when interval between first and second element equals 4 and between second and third -> 3.

4. In minor/major chord interval between first and third element equals... 7.

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There is a preloaded list of the 12 notes of a chromatic scale built on C. This means that there are (almost) all allowed note' s names in music.

notes = 
['C', ['C#', 'Db'], 'D', ['D#', 'Eb'], 'E', 'F', ['F#', 'Gb'], 'G', ['G#', 'Ab'], 'A', ['A#', 'Bb'], 'B']

Note that e. g. 'C#' - 'C' = 1, 'C' - 'C#' = 1, 'Db' - 'C' = 1 and 'B' - 'C' = 1. 

Input:
String of notes separated by whitespace, e. g. 'A C# E'

Output:
String message: 'Minor', 'Major' or 'Not a chord'.

```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 minor_or_major(chord):\n  \n  interval = {"C":1,\'C#\':2,\'Db\':2,\'D\':3,\'D#\':4,\'Eb\':4,\'E\':5,\'F\':6,\n  \'F#\':7,\'Gb\':7,\'G\':8,\'G#\':9,\'Ab\':9,\'A\':10,\'A#\':11,\'Bb\':11,\'B\':12}\n\n  chord = chord.split()\n\n  if len([i for i in chord if i in interval]) == 3:\n    if interval[chord[1]] - interval[chord[0]] in [4,-8] and interval[chord[2]] - interval[chord[1]] in [3,-9]:\n        return "Major"\n\n    elif interval[chord[1]] - interval[chord[0]] in [3,-9] and interval[chord[2]] - interval[chord[1]] in [4,-8]:\n        return "Minor"\n\n    else:\n        return "Not a chord"\n  else:\n      return "Not a chord"'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'minor_or_major'
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: 6372