C111112111133131121133133313331323133313221211111333133313331333132312331   >>    C11111211113313112113313331333132313331322121111133313331333133313231233   <<    C111112111133131121133133313331323133313221211111333133313331333132312333   >>      C111112111133131121133133313331323133313221211111333133313331333132312332   >>