C# Dicationary to Json

using System.Collections;
using System.Collections.Generic;
using System.Linq;
 
Dictionary<string, int> example = new Dictionary<string, int>();
example.Add("abc", 100);
 
string MyDictionaryToJson(Dictionary<string, int> dict)
    {
        var entries = dict.Select(d =>
            string.Format("\"{0}\": {1}", d.Key, string.Join(",", d.Value)));
        return "{" + string.Join(",", entries) + "}";
    }
 
print(MyDictionaryToJson(example));