public string Recover(string[] lines, IFinder finder)
{
int firstLineLength = lines[0].Length;
char[] message = new char[firstLineLength];
for (int pos = 0; pos < firstLineLength; pos++)
{
foreach (string line in lines)
{
finder.RegisterLetter(line[pos]);
}
message[pos] = finder.Execute();
}
return(new string(message));
}
