// #pragma GCC optimize("O3,unroll-loops") #include <bits/stdc++.h> // #include <x86intrin.h> using namespace std; #if __cplusplus >= 202002L using namespace numbers; #endif int main(){ cin.tie(0)->sync_with_stdio(0); cin.exceptions(ios::badbit | ios::failbit); set<string> s{"akai", "marui", "okii", "umai"}; int n; cin >> n; int res = 0; for(auto i = 0; i < n; ++ i){ set<string> c; for(auto j = 0; j < 4; ++ j){ string s; cin >> s; c.insert(s); } res += c == s; } cout << res << "\n"; return 0; } /* */