#include<bits/stdc++.h>
using namespace std;
int main()
{
int n, i;
map<string, int>mp;
string s[5];
string ch = "";
while(cin >> n && n != 0)
{
for(i=1;i<=n;i++)
{
cin >> s[0] >> s[1] >> s[2] >> s[3] >> s[4];
sort(s, s+5);
ch = s[0] + s[1] + s[2] + s[3] + s[4];
mp[ch]++;
}
int mx = 0, c = 0;
for(auto it = mp.begin(); it!=mp.end(); it++)
{
if(it->second > mx)
{
mx = it->second;
c = 0;
}
if(mx == it->second)
{
c += mx;
}
}
cout << c << "\n";
mp.clear();
}
return 0;
}
using namespace std;
int main()
{
int n, i;
map<string, int>mp;
string s[5];
string ch = "";
while(cin >> n && n != 0)
{
for(i=1;i<=n;i++)
{
cin >> s[0] >> s[1] >> s[2] >> s[3] >> s[4];
sort(s, s+5);
ch = s[0] + s[1] + s[2] + s[3] + s[4];
mp[ch]++;
}
int mx = 0, c = 0;
for(auto it = mp.begin(); it!=mp.end(); it++)
{
if(it->second > mx)
{
mx = it->second;
c = 0;
}
if(mx == it->second)
{
c += mx;
}
}
cout << c << "\n";
mp.clear();
}
return 0;
}
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