protected override int Part2(string[] input)
{
var gates = new Gates(input);
var signal1 = Part1(input);
gates["b"].Input1 = signal1.ToString();
gates.ResetAllGates();
while (gates["a"].Output == null)
{
gates.EmulateAllGates();
}
var signal2 = gates["a"].Output.Value;
return(signal2);
}
