求救，样例过了，但提交后测试点都报错“Wrong Answer.wrong answer Too short on line 1."

#include<cstdio>
#include<iostream>
using namespace std;
typedef long long int LL;
inline LL quick_pow(LL a,LL b, LL p){
    LL res=1;
    while(b)
    {
        if(b&1)  res=res*a%p;
        a=a*a%p;
        b>>=1;
    }
    return res;
}
inline LL gcd(LL a, LL b)
{
    if(b==0) return a;
    else return gcd(b,a%b);
}
int main(void)
{
    LL t,n,p,a;
    scanf("%d%d",&n,&p);//求解a关于p的乘法逆元 
    for(a=1;a<=n;a++){
        if(gcd(a,p)==1) printf("%lld\n",quick_pow(a,p-2,p));
        else cout<<"impossible"<<endl;
	}
}