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using System.Text.RegularExpressions;
namespace ch_2;
public static class Ch2
{
public static void Main()
{
while (Console.ReadLine() is { } line)
foreach (var outputWord in Regex.Split($"{line}\n", @"\b").Select(Jumble))
Console.Write(outputWord);
}
private static string Jumble(string word) =>
word.Length < 4 || !Regex.IsMatch(word, @"\w")
? word
: word[0] + word[1..^1].Shuffle() + word[^1];
private static string Shuffle(this string str)
{
var chars = str.ToCharArray();
Random.Shared.Shuffle(chars);
return new string(chars);
}
}
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