C1111133313331323223313331333133313331322133313331323211232311211   >>    C111113331333132322331333133313331333132213331333132321123231121   <<    C1111133313331323223313331333133313331322133313331323211232311213   >>      C1111133313331323223313331333133313331322133313331323211232311212   >>