C1111121111331311211331333133313331333133313232212111112111133133322131   >>    C111112111133131121133133313331333133313331323221211111211113313332213   <<    C1111121111331311211331333133313331333133313232212111112111133133322133   >>      C1111121111331311211331333133313331333133313232212111112111133133322132   >>