file = open('13A.txt')
n = int(file.readline())
A = []
for i in range(n):
    A += [int(file.readline())]

Min = 100000000000
for i in range(n):
    for j in range(i + 1, n):
        for k in range(j + 1, n):
            if (A[i] + A[j] + A[k]) % 11 == 0:
                Min = min(A[i] + A[j] + A[k], Min)
print(Min)

'''km = []
k = [0] * 11
for i in range(n):
    ost = A[i] % 11
    k[ost] += 1'''