C1111121111331311211331333133313331313331323223313331323133112321231   >>    C111112111133131121133133313331333131333132322331333132313311232123   <<    C1111121111331311211331333133313331313331323223313331323133112321233   >>      C1111121111331311211331333133313331313331323223313331323133112321232   >>