using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var data = new[] {
			"AB7YT1M=ABC",
			"AB10YT1M=ABC",
			"AB30YT1M=ABC",
			"ABCDEF1Y1M=A",
			"ABCDEF34Y6M=A",
			"ABCDEF7M=A"
		};
		Regex r = new Regex(@"(?:(\d+)Y)?T?(?:(\d+)M)");
		foreach (var s in data) {
			var m = r.Match(s);
			if (m.Success) {
				var yy = m.Groups[1];
				var mm = m.Groups[2];
				Console.WriteLine("Y='{0}', M='{1}'", yy, mm);
			}
		}
	}
}