-----
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

Difficulty: UNKNOWN_DIFFICULTY

Starter code:

Solutions:
n = int(input())
l = []
count = 0
while n:
	n -= 1
	(a, b, c) = sorted(map(int, input().split()))
	if (a, b, c) in l:
		count -= 1
	else:
		l.append((a, b, c))
		count += 1
print(count)


try:
	s = []
	for i in range(int(input())):
		n = list(map(int, input().split()))
		n.sort()
		s.append(n)
	unique = []
	for i in s:
		if s.count(i) == 1:
			unique.append(i)
		else:
			continue
	print(len(unique))
except:
	pass


n = int(input())
ans = {}
count = 0
for _ in range(n):
	arr = list(map(int, input().split()))
	temp = sum(arr)
	if temp in ans:
		ans[temp] += 1
	else:
		ans[temp] = 1
count = 0
for i in list(ans.values()):
	if i == 1:
		count += 1
print(count)


n = int(input())
d = dict()
for i in range(n):
	l = list(map(int, input().split(' ')))
	l1 = []
	l1.append(max(l))
	l1.append(sum(l) - (l1[0] + min(l)))
	l1.append(min(l))
	t = tuple(l1)
	try:
		d[t] += 1
	except:
		d[t] = 0
c = 0
for i in d:
	if d[i] == 0:
		c += 1
print(c)


l = []
for i in range(int(input())):
	t = list(set(list(map(int, input().split()))))
	if t not in l:
		l.append(t)
	else:
		l.remove(t)
print(len(l))


n = int(input())
k = 0
d = {}
for _ in range(n):
	a = list(map(int, input().split()))
	a.sort()
	a = str(a)
	if a in d.keys():
		d[a] = d[a] + 1
	else:
		d[a] = 1
for key in d:
	if d[key] == 1:
		k = k + 1
print(k)


n = int(input())
d = {}
s = 0
for i in range(n):
	t = list(map(int, input().split()))
	t.sort()
	t = tuple(t)
	if t in d:
		d[t] = d[t] + 1
		s = s - 1
	else:
		d[t] = 1
		s = s + 1
print(s)


s = []
res = 0
for _ in range(int(input())):
	a = list(map(int, input().split()))
	a.sort()
	s.append(a)
for _ in range(len(s)):
	if s.count(s[_]) == 1:
		res += 1
print(res)


try:
	n = int(input())
	arr = []
	for i in range(n):
		arr.append(list(map(int, input().split(' '))))
	out = list(map(sorted, arr))
	dic = {}
	for elem in out:
		dic.setdefault(tuple(elem), list()).append(1)
	for (k, v) in list(dic.items()):
		dic[k] = sum(v)
	unique_set = 0
	for v in list(dic.values()):
		if v == 1:
			unique_set += 1
	print(unique_set)
except:
	pass


n = int(input())
lst = []
for i in range(n):
	l1 = list(map(int, input().split()))
	l1.sort()
	if l1 not in lst:
		lst.extend([l1])
	else:
		lst.remove(l1)
print(len(lst))


n = int(input())
lst = []
unique = 0
for _ in range(n):
	a = list(map(int, input().split()))
	a.sort(reverse=True)
	lst.append(a)
for ele in lst:
	if lst.count(ele) == 1:
		unique += 1
print(unique)


try:
	cnt = 0
	l = []
	d = {}
	t = tuple()
	for _ in range(int(input())):
		w = [int(i) for i in input().split()]
		w.sort()
		l.append(w)
	t = tuple(l)
	for i in t:
		if tuple(i) not in d:
			d[tuple(i)] = 1
		else:
			d[tuple(i)] += 1
	for i in d:
		if d[i] == 1:
			cnt += 1
	print(cnt)
except EOFError as e:
	pass


n = int(input())
A = {}
for i in range(n):
	a = list(map(int, input().split()))
	a.sort()
	for i in range(3):
		a[i] = str(a[i])
	s = ''.join(a)
	if s in A:
		A[s] += 1
	else:
		A[s] = 1
count = 0
for i in A:
	if A[i] == 1:
		count += 1
print(count)


n = int(input())
dct = dict()
c = 0
for i in range(n):
	x = input()
	for j in x:
		if j.isdigit():
			if j in list(dct.keys()):
				dct[j] += 1
			else:
				dct[j] = 1
for k in dct:
	if dct[k] == 1:
		c += 1
print(c)


from collections import Counter
quiz_set = []
for question_set in range(int(input())):
	qs = tuple(sorted(map(int, input().split())))
	quiz_set.append(qs)
quiz_set = Counter(quiz_set)
unique_counts = list(quiz_set.values()).count(1)
print(unique_counts)


try:
	n = int(input())
	my_list = []
	for i in range(n):
		marks = list(map(int, input().split()))
		marks = sorted(marks)
		my_list.append(marks)
	unique = 0
	i = 0
	while i < len(my_list):
		if my_list.count(my_list[i]) == 1:
			unique += 1
		i += 1
	print(unique)
except:
	pass


from sys import stdin, stdout
input = stdin.readline
from collections import defaultdict as dd
import math

def geti():
	return list(map(int, input().strip().split()))

def getl():
	return list(map(int, input().strip().split()))

def gets():
	return input()

def geta():
	return int(input())

def print_s(s):
	stdout.write(s + '\n')

def solve():
	occur = dd(int)
	n = geta()
	a = []
	for i in range(n):
		temp = getl()
		temp.sort(reverse=True)
		a.append(tuple(temp))
		occur[a[-1]] += 1
	ans = 0
	for i in a:
		if occur[i] == 1:
			ans += 1
	print(ans)

def __starting_point():
	solve()
__starting_point()


import sys
n = int(input().strip())
diz = {}
counter = 0
for _ in range(n):
	values = list(map(int, input().strip().split()))
	values.sort(reverse=True)
	values = tuple(values)
	if values not in diz:
		diz[values] = 1
		counter += 1
	elif diz[values] == 1:
		counter -= 1
		diz[values] = 0
print(counter)


n = int(input())
l = []
for i in range(n):
	(a, b, c) = list(map(int, input().split()))
	t = [a, b, c]
	l.append(sorted(t))
l.sort()
l1 = []
for i in l:
	l1.append(l.count(i))
counter = 0
for i in l1:
	if i == 1:
		counter += 1
print(counter)


n = int(input())
a = [sorted(list(map(int, input().split()))) for i in range(n)]
c = 0
for j in range(n):
	if a.count(a[j]) == 1:
		c = c + 1
print(c)


n = int(input())
l = []
for i in range(n):
	x = list(map(int, input().split()))
	x.sort(reverse=True)
	l.append(x)
s = 0
for i in range(n):
	c = 0
	for j in range(n):
		if l[i] == l[j]:
			c += 1
	if c == 1:
		s += 1
print(s)


n = int(input())
ar = [sorted(list(map(int, input().split()))) for i in range(n)]
c = 0
for j in range(n):
	if ar.count(ar[j]) == 1:
		c += 1
	else:
		pass
print(c)


from collections import Counter
l = []
for _ in range(int(input())):
	s = list(map(int, input().split()))
	s = sorted(s)
	l.append(tuple(s))
c = Counter(l)
t = 0
for v in list(c.values()):
	if v == 1:
		t += 1
print(t)


n = int(input())
l = []
for i in range(n):
	l.append(list(map(int, input().split())))
	l[i].sort()
countu = 0
for i in l:
	if l.count(i) == 1:
		countu += 1
print(countu)