n = int(input())
table = []
for i in range(n):
    table.append(list(input()))

for i in range(n):
    for j in range(n):
        if table[i][j] == '-':
            table[i][j] = 'o'
            table[j][i] = 'x'

win = 0
win_e = 0
pos = 1
for i in range(n):
    if i == 0:
        win = table[i].count('o')
    else:
        win_e = table[i].count('o')
        if win < win_e:
            pos += 1

print(pos)