diff --git a/Code-C/main.c b/Code-C/main.c
index a82f866..b8f4190 100644
--- a/Code-C/main.c
+++ b/Code-C/main.c
@@ -66,6 +66,9 @@ void *threadCalculGrowthRate(void * vargp){
     Pqueue rawDataQueue = firstRawDataQueue;
     char* fileName;
     while(rawDataWriteFlag){
+        //add case first file traitement 
+        //(possibility 1: call twice powerfunction , following while strat after 2 file encountered)
+        //(posibilty 2 : initialiaze with a 0-fill array, move ligns for first encounter then let the following whil e do the job)
         while(queueGetNextE(rawDataQueue) != NULL){
             rawDataQueue = queueGetNextE(rawDataQueue);
             fileName = queueGetTabChar(rawDataQueue);