C1111121111331311211331333133313331323131133133313222112322132321   >>    C111112111133131121133133313331333132313113313331322211232213232   <<    C1111121111331311211331333133313331323131133133313222112322132323   >>      C1111121111331311211331333133313331323131133133313222112322132322   >>