internal void Question1()
{
if (!TryParseInput())
{
MessageBox.Show("Can't parse");
return;
}
var sb = new StringBuilder();
int nbValidMessages = 0;
foreach (var message in m_messages)
{
if (m_system.CheckMessage(message, 0))
{
sb.AppendLine(message.Text);
nbValidMessages++;
}
}
sb.Append($"Number of valid messages: {nbValidMessages}");
Result.Text = sb.ToString();
}