void Main(){    string exp="1+2*3+(2+4)*3-23+23-4/2";    new DataTable().Compute(exp,null).Dump();    Microsoft.JScript.Vsa.VsaEngine ve =     Microsoft.JScript.Vsa.VsaEngine.CreateEngine();    (Microsoft.JScript.Eval.JScriptEvaluate(exp, ve)).Dump();    //IronPython }