IOC_Multiple_Implementations_2.cs

public class InputProcessor
{
    private readonly IEnumerable<IValidator> _validators;

    public InputProcessor(IEnumerable<IValidator> validators)
    {
        _validators = validators;
    }

    public void Process(string input)
    {
        foreach (var validator in _validators)
        {
            var result = validator.Validate(input);
            if (result.IsValid == false)
            {
                // Removed for brevity
            }
        }
        
        // Removed for brevity
    }
}