using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
var regex = new Regex(@"(?<=Paybacks[:\s]*)[^\s:].*", RegexOptions.IgnoreCase);
string[] strings = {"Paybacks: blah", "Paybacks blah", "Paybacks blah"};
foreach (String s in strings)
{
Console.WriteLine(regex.Match(s)?.Value);
}
}
}
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