為什麼會輸出1005行???

#include<iostream>
using namespace std;
int main()
{
int m=11;
long long int n;
while(cin>>n){
if(n%m==0){
cout<<n<<" is a multiple of "<<m<<"."<<'\n';
}else if(n%m!=0){
cout<<n<<" is not a multiple of "<<m<<"."<<'\n';
}else if(n=0){
break;
}
}
return 0;
}