C1111121111331311211331333133313331333133313231333133313331333131333112113131   >>    C111112111133131121133133313331333133313331323133313331333133313133311211313   <<    C1111121111331311211331333133313331333133313231333133313331333131333112113133   >>      C1111121111331311211331333133313331333133313231333133313331333131333112113132   >>