X-Sequence

Description

Let {x_i} be the infinite sequence of integers: 
1) x₀ = A; 
2) x_i = (alpha * x_i-1^2 + beta * x_i-1 + gamma) mod M, for i >= 1. 
Your task is to find x_k if you know A, alpha, beta, gamma, M and k.

Input

Given A (1 <= A <= 10000), alpha (0 <= alpha <= 100), beta (0 <= beta <= 100), gamma (0 <= gamma <= 100), M (1 <= M <= 1000), k (0 <= k <= 10^9). All numbers are integer.

Output

Write x_k.

Sample Input

Input

 

 

1 1 1 1 10 1

 

 

Output

 

 

3

 

/**********************
打表观察，一个周期问题，暴力找周期 ，巧用map找周期
********************************/
#include"iostream"
#include"map"
#include"cstdio"
using namespace std;
const int ms=;
int T,begin,A,a,b,c,m,k;
void find()
{
    map<int, int> mp;
    //map[0]=A;
    mp[]=A;
    int tmp=A;
    for(int i=;i<=ms;i++)
    {
        tmp=(a*tmp*tmp+b*tmp+c)%m;
        if(mp[tmp])
        {
            begin=mp[tmp];
            T=i-mp[tmp];
            break;
        }
        else
        {
            mp[tmp]=i;
        }
    }
}
int main()
{
    scanf("%d%d%d%d%d%d",&A,&a,&b,&c,&m,&k);
    find();
    int ans;
    if(k<begin)
    {
        ans=A;
        for(int i=;i<=k;i++)
            ans=((long long)a*ans*ans+b*ans+c)%m;
        cout<<ans<<endl;
    }
    else
    {
        k-=begin;k%=T;ans=A;
        for(int i=;i<=begin+k;i++)
        {
            ans=(a*ans*ans+b*ans+c)%m;
        }
        cout<<ans<<endl;
    }
    return ;
}