C1111121111331311211331333133313331333133313221211111323221323131   >>    C111112111133131121133133313331333133313331322121111132322132313   <<    C1111121111331311211331333133313331333133313221211111323221323133   >>      C1111121111331311211331333133313331333133313221211111323221323132   >>