#include <bits/stdc++.h>
using namespace std;
int main() {
int n,j=0;
cin>>n;
int a[n]={0};
for(int i=0;i<n;i++){
cin>>a[j];
if(a[j]!=0){
j++;
}
}
for(int i=0;i<n;i++){
cout<<a[i]<<" ";
}
return 0;
}
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