decode from c# bytes error

[sonygod]

message Test{
	
	required uint32 test=1;
 	optional string resultPath=2;
	required uint32 test2=3;
	
}

 var msg = new ProtocolMessage();
        msg.type = ProtocolMessage.MsgType.TEST;
        var lrq = new samples.Test();
        
        lrq.test = 0;
        lrq.resultPath = "1";
        lrq.test2 = 0;
        msg.test = lrq;

such like same proto

c#
bytes: 086a4200

haxe:
byts 08707720a080012043139393931863

the size is not same and each language can be decode right by theirself ,what's wrong?