C111112111133131121133133313331323133313221211111333133311232323311   >>    C11111211113313112113313331333132313331322121111133313331123232331   <<    C111112111133131121133133313331323133313221211111333133311232323313   >>      C111112111133131121133133313331323133313221211111333133311232323312   >>