#include <iostream>
#include <fstream>
int main() {
std::ifstream inputFile("input.txt"); // Open the file named "input.txt" for reading
if (!inputFile.is_open()) {
std::cerr << "Error opening file." << std::endl; // Display an error message if the file cannot be opened
return 1; // Return an error code
}
int inputNumber;
inputFile >> inputNumber; // Read an integer from the file and store it in the variable inputNumber
inputFile.close(); // Close the file
// Further processing using the inputNumber can be done here
return 0; // Return 0 to indicate successful execution
}