count = int (input())
pairs = []

for i in range(count):
    line = list(map(int, input().split(" ")))
    for x in range(1, len(line)):
        pairs.append((i, line[x]))

count = 0
for i in range(len(pairs)):
    pos, next = pairs[i]
    for j in range(i + 1, len(pairs)):
        Npos, Nnext = pairs[j]
        if pos == Npos:
            continue
        if Nnext < next:
            count += 1

print(count)