gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 gs1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 ds2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2 Fs2