#include <iostream>
#include <vector>
#include <set>

int main() {
    long int n;
    std::ios::sync_with_stdio(false);
    std::cin >> n;
    std::vector<std::set<long int>> birds(n);
    for (long int i = 0; i < n; ++i) {
        long int b;
        std::cin >> b;

        for (long int j = 0; j < b; ++j) {
            long int en;
            std::cin >> en;
            birds[i].insert(en);
        }
        // std::sort(birds[i].begin(), birds[i].end());
    }

    long int res = 0;
    std::vector<long int> crosses(n, 0);
    for (long int pos = 0; pos < n; ++pos) {
        for (long int bird : birds[pos]) {
            res += crosses[bird];
            for (long int i = 0; i < bird; ++i)
                ++crosses[i];
        }
    }

    std::cout << res << std::endl;

    return 0;
}