C3123121111113313121111331333133313331333132313331323223313332321   >>    C312312111111331312111133133313331333133313231333132322331333232   <<    C3123121111113313121111331333133313331333132313331323223313332323   >>      C3123121111113313121111331333133313331333132313331323223313332322   >>