C313212111133131211331333133313331311331333131211111211113313331322331323232321   >>    C31321211113313121133133313331333131133133313121111121111331333132233132323232   <<    C313212111133131211331333133313331311331333131211111211113313331322331323232323   >>      C313212111133131211331333133313331311331333131211111211113313331322331323232322   >>