#include <iostream>
#include <sstream>
int main() {
std::ostringstream os;
os << "1\n";
os << "2\n";
os << "1233\n";
std::cout << os.str() << std::endl;
return 0;
}
#include <iostream>
#include <sstream>
int main() {
std::ostringstream os;
os << "1\n";
os << "2\n";
os << "1233\n";
std::cout << os.str() << std::endl;
return 0;
}