import sys
from collections import Counter
a = int(input())
list1 = list(map(int, input().split()))

if len(set(list1)) == 1:
    print(0)
    sys.exit()

list2 = []
ans = 0
for i in range(len(list1)):
    if list1[i] >= 10:
        num = (list1[i] + 1) % 10
        list2.append(num)
        ans += 1
    else:
        list2.append(list1[i])

distance = {(0, 0): 0, (0, 1): 1, (0, 2): 2, (0, 3): 3, (0, 4): 4, (0, 5): 5, (0, 6): 6, (0, 7): 7, (0, 8): 8, (0, 9): 9,
            (1, 0): 9, (1, 1): 0, (1, 2): 1, (1, 3): 2, (1, 4): 3, (1, 5): 4, (1, 6): 5, (1, 7): 6, (1, 8): 7, (1, 9): 8,
            (2, 0): 8, (2, 1): 9, (2, 2): 0, (2, 3): 1, (2, 4): 2, (2, 5): 3, (2, 6): 4, (2, 7): 5, (2, 8): 6, (2, 9): 7,
            (3, 0): 7, (3, 1): 8, (3, 2): 9, (3, 3): 0, (3, 4): 1, (3, 5): 2, (3, 6): 3, (3, 7): 4, (3, 8): 5, (3, 9): 6,
            (4, 0): 6, (4, 1): 7, (4, 2): 8, (4, 3): 9, (4, 4): 0, (4, 5): 1, (4, 6): 2, (4, 7): 3, (4, 8): 4, (4, 9): 5,
            (5, 0): 5, (5, 1): 6, (5, 2): 7, (5, 3): 8, (5, 4): 9, (5, 5): 0, (5, 6): 1, (5, 7): 2, (5, 8): 3, (5, 9): 4,
            (6, 0): 4, (6, 1): 5, (6, 2): 6, (6, 3): 7, (6, 4): 8, (6, 5): 9, (6, 6): 0, (6, 7): 1, (6, 8): 2, (6, 9): 3,
            (7, 0): 3, (7, 1): 4, (7, 2): 5, (7, 3): 6, (7, 4): 7, (7, 5): 8, (7, 6): 9, (7, 7): 0, (7, 8): 1, (7, 9): 2,
            (8, 0): 2, (8, 1): 3, (8, 2): 4, (8, 3): 5, (8, 4): 6, (8, 5): 7, (8, 6): 8, (8, 7): 9, (8, 8): 0, (8, 9): 1,
            (9, 0): 1, (9, 1): 2, (9, 2): 3, (9, 3): 4, (9, 4): 5, (9, 5): 6, (9, 6): 7, (9, 7): 8, (9, 8): 9, (9, 9): 0}
ans2 = float('inf')

for i in range(0, 10):
    num2 = 0
    for j in list2:
        num2 += distance[(j % 10), i]
    ans2 = min(num2 + ans, ans2)

ans2 += ans
print(ans2)