C1111121111331311211331333133313331333133313121111331323223313231311121   >>    C111112111133131121133133313331333133313331312111133132322331323131112   <<    C1111121111331311211331333133313331333133313121111331323223313231311123   >>      C1111121111331311211331333133313331333133313121111331323223313231311122   >>