# include <iostream># include <fstream>using namespace std;

int main (){

ifstream inputfile;int a, b, c;

inputfile.open("foo.in");

inputfile >> a;inputfile >> b;inputfile >> c;

ofstream outputfile;outputfile.open("foo.out");

outputfile << c;outputfile << b;outputfile << a;

inputfile.close();outputfile.close();

return 0;}

# include <iostream>using namespace std;

int main (){

int age; cout << "Enter your age "; cin >> age;if (( age >= 0) && ( age <= 125)) { }else{

cout << "The value must be between 0 and 125";}return 0;

}