#include <iostream>
#include "stdafx.h"
using namespace std;

float showSquare(float number);

int main()
{
    float number;
    float value;
    cout << "Square a number."<< endl;
    cout << "Enter a number: " << endl;
    cin >> number;
    value = showSquare(number);
    cout << "The square is " << value << endl;
    return 0;
}

float showSquare(float number);
{
    return number * number;
}