C1111133313331323223313331333133313113313133112111133132231232331   >>    C111113331333132322331333133313331311331313311211113313223123233   <<    C1111133313331323223313331333133313113313133112111133132231232333   >>      C1111133313331323223313331333133313113313133112111133132231232332   >>