C111112111133131121133133313331323133313221323331333131133133313231133112111   >>    C11111211113313112113313331333132313331322132333133313113313331323113311211   <<    C111112111133131121133133313331323133313221323331333131133133313231133112113   >>      C111112111133131121133133313331323133313221323331333131133133313231133112112   >>