void OnCalculate(object sender, EventArgs e)
{
Count countLib = new Count();
int countSpaces = countLib.CountSpaces(input.Text);
int countWords = countLib.CountWords(input.Text);
int a1 = Math.Min(countSpaces, countWords);
int an = Math.Max(countSpaces, countWords);
result = countLib.CountSum(a1, an);
output.Text = $"There are {countWords} words and {countSpaces} spaces in the string.\n" +
$"The sum of numbers between {a1} and {an} is {result}";
}