C1111121111331311211331333133313331333133313231333133313331323221323112111   >>    C111112111133131121133133313331333133313331323133313331333132322132311211   <<    C1111121111331311211331333133313331333133313231333133313331323221323112113   >>      C1111121111331311211331333133313331333133313231333133313331323221323112112   >>