#include <iostream>

using namespace std;
int main() {
    int n;
    int arr[400000] = {};
    int a_size = 0;
    int cnt = 0;
    cin >> n;
    for (int i = 0; i < n; i++) {
        int c;
        cin >> c;
        for(int j = 0; j < c; j++) {
            int x;
            cin >> x;
            if (a_size) {
                for (int y = 0; y < a_size; y += 2)
                {
                    if (i > arr[y] && x < arr[y+1] || i < arr[y] && x > arr[y+1])
                        cnt+=1;
                }
            }
            arr[a_size] =i;
            arr[a_size +1] = x;
            a_size+=2;
        }
    }
    cout << cnt << endl;
    return 0;
}