N = gets.to_i S = N.times.map { gets.chomp } counter = Hash.new(0) S.each do |s| n = s.size n.times do |i| c = s[i] s[i] = '.' counter[s] += 1 s[i] = c end end S.each do |s| n = s.size ans = 0 n.times do |i| c = s[i] s[i] = '.' ans += counter[s] - 1 s[i] = c end puts ans end