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test

#1
k = 0
file = open('27-A(2).txt', 'r')
n = int(file.readline())
v = [int(file.readline()) for i in range(n)]
for i in range(n):
    for j in range(i+1, n):
        p = v[i]*v[j]
        if p%(10**6) == 0 and p%(10**7) != 0 : k+=1
print(k)

#2
k = 0
file = open('27-45792A.txt', 'r')
n = int(file.readline())
v = [int(file.readline()) for i in range(n)]
for i in range(n):
    for j in range(i+1, n):
        if (v[i]+v[j])%11 == 0 and (v[i]*v[j])%2310 == 0 : k+=1
print(k)

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