C1111133313331323223313331333133313331323131211113323112113113121   >>    C111113331333132322331333133313331333132313121111332311211311312   <<    C1111133313331323223313331333133313331323131211113323112113113123   >>      C1111133313331323223313331333133313331323131211113323112113113122   >>