n = int(input())

a = [list(map(int, input().split())) for i in range(n)]
ans = [float('inf') for i in range(n)]

for i in range(n):
    tmp = [0 for i in range(n)]
    for j in range(n):
        for k in range(n):
            tmp[a[k][j] - 1] += max(j, abs(i - k))
    ans = [min(ans[i], tmp[i]) for i in range(n)]
print(sum(ans))