def toInt(x):
    return int(x)


n = int(input())
zoz = []
for i in range(n):
    zoz.append(list(map(toInt, input().split())))

blabla = []
for i in range(n):
    for o in range(1, zoz[i][0]+1):
        blabla.append([i, zoz[i][o]])


haha = 0;
for i in range(len(blabla) -1):
    for j in range(i, len(blabla)):
        if blabla[i][0] < blabla[j][0] and blabla[i][1] > blabla[j][1]:
            haha += 1;

print(haha)