C31231211111133131211113313331333133312111112113313331323223313113313233232321   >>    C3123121111113313121111331333133313331211111211331333132322331311331323323232   <<    C31231211111133131211113313331333133312111112113313331323223313113313233232323   >>      C31231211111133131211113313331333133312111112113313331323223313113313233232322   >>