#include <stdio.h>
#include <vector>
using namespace std;
vector<int> A;
int rec(int idx){
int i = A.size();
A.push_back(0);
if (idx >= 1000) return i;
A[i] = rec(idx+1);
return i;
}
int main(){
A.clear();
rec(0);
printf("A :");
for (int i=0; i<5 && i<A.size(); i++)
printf(" %d",A[i]);
puts("");
fflush(stdout);
}
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