C1111121111331311211331333133313331313331323223313112113313231321123223321   >>    C111112111133131121133133313331333131333132322331311211331323132112322332   <<    C1111121111331311211331333133313331313331323223313112113313231321123223323   >>      C1111121111331311211331333133313331313331323223313112113313231321123223322   >>