creating regex expression for string

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C#

regular-expression

I am writing to seek advice, as to where I may be going wrong in the following Regex expression below:

var input = "97.2525, M45s, 130.5, +129s, 145s";

    foreach(var match in Regex.Matches(input,@"\+\d+([1-9]\d{2,})\[AS]"))
    {

        Console.WriteLine(match);

    }

the output from this code should be the following values "+129s, 145s".
Thank you in advance for your help and time.