def toInt(x):
    return int(x)


n = int(input())
blabla = [0] * 200005
haha = 0
rowIndex = 0
for i in range(n):
    kolko = list(map(toInt, input().split()))
    prevRow = rowIndex
    for o in range(1, len(kolko)):
        haha += blabla[kolko[o]]

    for o in range(1, len(kolko)):
        for j in range(kolko[o]):
            blabla[j] += 1

print(haha)