C312312111111331312111133133313121111133313113313331322331322123313321   >>    C31231211111133131211113313331312111113331311331333132233132212331332   <<    C312312111111331312111133133313121111133313113313331322331322123313323   >>      C312312111111331312111133133313121111133313113313331322331322123313322   >>