i=lambda:int(s())
s=lambda:input()
def p(X):
    global a
    if sorted(X)==c:a+=1
a,N,c=0,i(),["."]
l=[["" for i in range(N)]for j in range(N)]
for i in range(N):
    if i>=1:c.append("A")
    S=s()
    for j in range(N):l[i][j]=S[j]
for i in range(N):
    q=[[],[],[],[]]
    for j in range(N):
        q[0].append(l[i][j])
        q[1].append(l[j][i])
        p(q[0])
        p(q[1])
    q[2].append(l[i][i])
    q[3].append(l[-(i+1)][-(i+1)])
p(q[2])
p(q[3])
print(a)