#include
using namespace std;
int printall(int*a,int n,int i,int key){
if (i==n){
return ;
}
if( a[i]== key){
cout<<i<<" ";
}
return printall(a,n,i+1,key);
}
int main() {
int n,key;
int i;
int a[n];
cin>>n;
for(int i=0;i<n;i++){
cin>>a[i];
}
cin>>key;
cout<<printall(a,n,0,key);
return 0;
}
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