C111112111133131121133133313331333133313331323221211111231323221   >>    C11111211113313112113313331333133313331333132322121111123132322   <<    C111112111133131121133133313331333133313331323221211111231323223   >>      C111112111133131121133133313331333133313331323221211111231323222   >>