C1111121111331311211331333133313331323132322331323133313113222321   >>    C111112111133131121133133313331333132313232233132313331311322232   <<    C1111121111331311211331333133313331323132322331323133313113222323   >>      C1111121111331311211331333133313331323132322331323133313113222322   >>