n = int(input())
left = []
right = []
for j in range(n):
    a = [int(i) for i in input().split()]
    for x in range(a[0]):
        if j < a[x+1]:
            left.append([j, a[x+1]])
        else:
            right.append([j, a[x+1]]) 

counter = 0

for i in right:
    for j in left:
        if (i[0] < j[0] and i[1] < j[1])or (i[0] > j[0] and i[1] < j[1]):
            counter += 1

print(counter)