#include using namespace std; const int SIZE=10000000; char A[SIZE]; char F[SIZE]; int inv[9]; inline int f(int x){ int ret=0; while(x){ ret+=x/3; x/=3; } return ret; } 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=2)t=0; else if(tmp==1)t=t*3%9; ans=(ans+t*A[i])%9; } if(ans==0)ans=9; printf("%d\n",ans); } int main(){ F[0]=1; for(int i=1;i