using System; using System.Collections.Generic; using System.Collections; using System.Collections.Specialized; using System.Linq; using System.Text; using System.IO; using System.Reflection; using static System.Math; using System.Numerics; //using nint=System.Int32; static class Program{ const int mod=(int)1e9+7; const double eps=1e-11; static void Main(){ Sc sc=new Sc(); var s=sc.Ia; var a=sc.La3("0 "," 0 0"); var b=sc.La3("0 "," 0 0"); var pq=new Pq>(32,true); pq.Push(new Dt(0,1)); var ba=new bool[s[0]+3]; int p=0; while(true){ var e=pq.Top; pq.Pop(); if(e.d>s[0]||ba[e.d]){continue;} ba[e.d]=true; p++; if(p==s[0]){ Console.WriteLine(e.n); return; } pq.Push(new Dt(e.n+a[e.d]+b[e.d+1],e.d+1)); pq.Push(new Dt(e.n+a[e.d]+b[e.d+2]+s[1],e.d+2)); } } } public class Dt:IComparable{ public long n; public T d; public Dt(long n,T d){this.n=n;this.d=d;} public int CompareTo(object obj){ Dt mymo=(Dt)obj; if(mymo.n>n){return -1;} else if(mymo.n where T:IComparable{ private T[] he; public int cnt=0,max=0; private Func compare; public Pq(int max,bool mm){ this.max=max; he=new T[max]; if(mm){compare=Ao;} else{compare=Do;} } public void Push(T x){ if(cnt==max){Extend();} int j=cnt; while(j!=0&&compare(x,he[(j-1)>>1])>0){he[j]=he[(j-1)>>1];j=(j-1)>>1;} he[j]=x; cnt++; } public void Pop(){ cnt--; T r=he[cnt]; int j=0; while(true){ if(j*2+10){j=j*2+1;} else{j=j*2+2;} } else if(j*2>1;break;} he[(j-1)>>1]=he[j]; } he[j]=r; } private int Ao(T x,T y){return y.CompareTo(x);} private int Do(T x,T y){return x.CompareTo(y);} public T Top{get{return he[0];}} private void Extend(){ T[] nhe=new T[max<<1]; Array.Copy(he,nhe,max); he=nhe; max<<=1; } } public class Sc{ public int I{get{return int.Parse(Console.ReadLine());}} public long L{get{return long.Parse(Console.ReadLine());}} public double D{get{return double.Parse(Console.ReadLine());}} public string S{get{return Console.ReadLine();}} public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}} public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}} public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}} public string[] Sa{get{return Console.ReadLine().Split();}} public object[] Oa{get{return Console.ReadLine().Split();}} public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}} public int[] Ia3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),int.Parse);} public int[] Ia3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),int.Parse);} public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}} public long[] La3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),long.Parse);} public long[] La3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),long.Parse);} public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}} public double[] Da3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),double.Parse);} public T[] Arr(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i