def toInt(x):
    return int(x)


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

    for o in range(1, len(dest)):
        sums[o] += 1

print(max)