#include using namespace std; #ifdef LOCAL #include "settings/debug.cpp" #define _GLIBCXX_DEBUG #else #define Debug(...) void(0) #endif #define rep(i, n) for (int i = 0; i < (n); ++i) using ll = long long; using ull = unsigned long long; int main() { int n; cin >> n; ll a = 0, b = 0, c = 0; rep(i, n) { int x; cin >> x; a += (x % 3 != 0); } rep(i, n) { int x; cin >> x; b += (x % 3 != 0); } rep(i, n) { int x; cin >> x; c += (x % 3 != 0); } Debug(a, b, c); cout << a * b * c << endl; return 0; }