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#1 ������
f = open("27-A.txt")
v = [int(i.strip()) for i in f]
f.close()
n = v[0]
k = 0
for i in range(1, n):
    for j in range(i + 1, n):
        s = str(v[i] * v[j])
        if len(str(s)) > 6 and s[-1]==s[-2]==s[-3]==s[-4]==s[-5]==s[-6]=="0" and s[-7]!=s[-6]:
            k += 1
print(k)
#2 ������
f = open("/home/student/27-45792A.txt")
v = [int(i.strip()) for i in f]
f.close()
n = v[0]
k = 0
for i in range(1, n):
    for j in range(i + 1, n):
        if (v[i] * v[j]) % 2310 == 0 and (v[i] + v[j]) % 11 == 0:
            k += 1
print(k)

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