C3123223313331322121111331333133313121111331323133313233213222321   >>    C312322331333132212111133133313331312111133132313331323321322232   <<    C3123223313331322121111331333133313121111331323133313233213222323   >>      C3123223313331322121111331333133313121111331323133313233213222322   >>