using System;
using System.Linq;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
var data = "field=100, field=10, field = 1000 , field = 50".Split(',');
var res = data.Where(s => { var m=Regex.Match(s, @"\d+"); return m.Success && int.Parse(m.Value)<60; });
Console.WriteLine(String.Join("\n", res));
}
}
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