private static void Exercise5()
{
ConsoleAppPrintUtil.PrintTextWithLineSeparator("Ejercicio 4:");
var questions = new string[] {
"Introduzca el primer número: ",
"Introduzca el segundo número: "
};
var answer1 = ConsoleAppPrintUtil.PrintQuestionWithStringAnswer(questions[0]);
var answer2 = ConsoleAppPrintUtil.PrintQuestionWithStringAnswer(questions[1]);
var number1 = answer1 == string.Empty ? null : answer1;
var number2 = answer2 == string.Empty ? null : answer2;
ConsoleAppPrintUtil.PrintDivision(number1, number2);
}