#include <iostream>
using namespace std;
int main() {
int a;
cin >> a;
int mas[a];
int sum = 0;
for(int i = 0; i < a; i++){
cin >> mas[i];
}
for(int i = 0; i < a; i++){
if(mas[i]%7 == 0){
sum += mas[i];
cout << sum << endl;}
}
return 0;
}
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