#include <iostream>
#include <vector>
using namespace std;
int main() {
vector <int> dd;
dd.push_back(2);
dd.push_back(4);
dd.push_back(5);
int dziesiatki = 1;
int wynik = 0;
for(int i = 0; i < dd.size(); i++){
wynik += dd[i] * dziesiatki;
dziesiatki *= 10;
}
cout << wynik;
return 0;
}
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