-----
RANJANA QUIZ
-----

Prof. Ranjana decided to conduct a quiz in her class. She divided all the students of her
class into groups of three. Consider that no student was left out after the division. She gave
different sets of questions to every group. A set is said to be unique if there is no other team that
received the same number of maths, science and english questions. In every set, maximum
questions for each group were related to maths, then science, and the least number of
questions were related to English. Total number of questions given to each team can be
different. 

	
	

After the test, the CR of the class asked every team to report the number of questions
they got on each subject. The CR wants to know the number of unique sets of questions that
were given to the teams, the problem is that all the students have just submitted the number of
questions of each subject but in no particular order. Help the CR to find the number of unique
sets

		
		

-----Input Format-----

Line 1 contains the number of teams ‘n’. In the next n lines, each line contains three space separated integers,i.e, the number of questions of each subject(in no particular order).
employee

-----Output-----

Print the number of unique sets

		
		

-----Example Text Case-----
Input:

5
6 5 4
2 3 7
4 6 5
7 2 3
5 3 1
	
Output:
1

```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

ns = {"__name__": "__main__"}
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = "# cook your dish here\nfrom sys import stdin, stdout\ninput = stdin.readline\nfrom collections import defaultdict as dd\nimport math\ndef geti(): return list(map(int, input().strip().split()))\ndef getl(): return list(map(int, input().strip().split()))\ndef gets(): return input()\ndef geta(): return int(input())\ndef print_s(s): stdout.write(s+'\\n')\n\ndef solve():\n    occur=dd(int)\n    n=geta()\n    a=[]\n    for i in range(n):\n        temp=getl()\n        temp.sort(reverse=True)\n        # print(temp)\n        a.append(tuple(temp))\n        occur[a[-1]]+=1\n    ans=0\n    for i in a:\n        if occur[i]==1:\n            ans+=1\n    print(ans)\n\n\n\ndef __starting_point():\n    solve()\n\n__starting_point()"
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

```

Measured memory_bytes: 15563