C111112111133131121133133313331323133313221323331333132313211231231   >>    C11111211113313112113313331333132313331322132333133313231321123123   <<    C111112111133131121133133313331323133313221323331333132313211231233   >>      C111112111133131121133133313331323133313221323331333132313211231232   >>