#include <iostream>
#include <sstream>
#include <climits>


int main() {
	std::istringstream st("1234567890123"); // Try with 2147483647
	int result;

	st >> result;

	if (result == INT_MAX)
		std::cout << "Overflow!" << std::endl;
	else
		std::cout << result << std::endl;

	return 0;
}