import 'dart:io';
void main() {
int value = stdin.readIntSync();
print(value);
}
extension ReadIntSyncOnStdin on Stdin {
int readIntSync() => int.parse(this.readLineSync());
}
import 'dart:io';
void main() {
print("Enter a number..");
var number = stdin.readLineSync();
var intNumber= int.parse(number);
print(intNumber);
}