def solve
  n = read_line.to_i
  o = Array.new(n) { read_line.split.map(&.to_i) }
  unit = -1
  n.times do |i|
    n.times do |j|
      n.times do |k|
        if o[i][o[j][k]] != o[o[i][j]][k]
          return false
        end
      end
    end
    if n.times.all? { |j| o[i][j] == j && o[j][i] == j }
      unit = i
    end
  end
  return false if unit == -1
  return n.times.all? { |i| n.times.any? { |j| o[i][j] == unit } }
end

puts solve() ? "Yes" : "No"