C1111133313331323223313331333133313331333132333133313112112113121   >>    C111113331333132322331333133313331333133313233313331311211211312   <<    C1111133313331323223313331333133313331333132333133313112112113123   >>      C1111133313331323223313331333133313331333132333133313112112113122   >>