#include<bits/stdc++.h> using namespace std; const int SIZE=10000000; char A[SIZE]; char F[SIZE]; int inv[9]; void solve(){ int N,x,a,b,m; scanf("%d%d%d%d%d",&N,&x,&a,&b,&m); A[0]=x%10; for(int i=1;i<N;i++){ x=((x^a)+b)%m; A[i]=x%10; } if(count(A,A+N,0)==N){ puts("0"); return; } N--; int fn=0; int t=N; while(t){ fn+=t/3;t/=3; } int fl=0,fr=fn; int ans=0; for(int i=0;i<=N;i++){ t=i; if(t)while(t%3==0){ t/=3; fl++; } int tmp=fn-fl-fr; int t=F[N]*inv[F[i]]*inv[F[N-i]]%9; if(tmp>=2)t=0; else if(tmp==1)t=t*3%9; ans=(ans+t*A[i])%9; t=N-i; if(t)while(t%3==0){ t/=3; fr--; } } if(ans==0)ans=9; printf("%d\n",ans); } int main(){ F[0]=1; for(int i=1;i<SIZE;i++){ int t=i; while(t%3==0)t/=3; F[i]=F[i-1]*t%9; } for(int i=0;i<9;i++){ if(i%3==0)continue; for(int j=0;j<9;j++)if(i*j%9==1)inv[i]=j; } int T; scanf("%d",&T); while(T--)solve(); }