diff --git a/main.py b/main.py
index 2a40033..3fc6d26 100644
--- a/main.py
+++ b/main.py
@@ -32,6 +32,8 @@ def merge():
     vfczfile = [filename for filename in os.listdir(dirpath) if filename.startswith("output_VFCZ_")]
     vfczfile = vfczfile[0]
 
+    # Help dicts
+    # tmcz_convertids
     convert_tmcz = {}
 
     with open('./help_files/TMCZ_IMSI.csv', 'r') as file:
@@ -42,7 +44,42 @@ def merge():
             print(row['IMSI'])
             convert_tmcz[MSISDN] = {'iccid': row['ICCID'],'imsi': row['IMSI']}
 
-    
+    # kranggulo_config_ids
+    serialnumberdict = {}
+
+    with open('./help_files/config_parser.csv', 'r') as file:
+        reader =csv.DictReader(file, delimiter=',')
+        for row in reader:
+            intobuid = int(row['obuid'])
+            date = row['date']
+            realsn = row['SN']
+            IMEI = int(row['IMEI'])
+            IMSI = int(row['IMSI'])
+            CCID = int(row['CCID'])
+
+            if IMSI in serialnumberdict:
+                print("dict for IMSI: ",IMSI,"dict: ",serialnumberdict[IMSI])
+                olddate = serialnumberdict[IMSI]['date']
+                if date > olddate:
+
+                    print("editovat, tento zaznam je novejsi")
+                    print("mame: ", olddate)
+                    print("zpracovavame: ", date)
+                    serialnumberdict[IMSI]['date'] = date
+                    serialnumberdict[IMSI]['obuid'] = intobuid
+                    serialnumberdict[IMSI]['sn'] = realsn
+                    serialnumberdict[IMSI]['imei'] = IMEI
+                    serialnumberdict[IMSI]['ccid'] = CCID
+                    print(serialnumberdict[IMSI])
+                else:
+                    print("needitovat, tento zaznam je starsi")
+                    print("mame: ",olddate)
+                    print("zpracovavame: ",date)
+            else:
+                serialnumberdict[IMSI] = {'obuid':intobuid,'date': date,'sn': realsn,'imei': IMEI,'ccid': CCID}
+
+
+
    
     
 
@@ -52,7 +89,7 @@ def merge():
         reader = csv.DictReader(csvfile, delimiter=',')
         #next(reader)
         print("got into reader func")
-        with open('./help_files/output_testmerge.csv', 'w', newline='', encoding="utf-8") as f:
+        with open('./output/output_testmerge.csv', 'w', newline='', encoding="utf-8") as f:
             writer = csv.writer(f)
             
             for row in reader:
@@ -65,12 +102,32 @@ def merge():
                     print("msisdn found in helper, we have iccid and imsi")
                     iccid = convert_tmcz[msisdn]['iccid']
                     imsi = convert_tmcz[msisdn]['imsi']
+
+
+                    imsitoconvert = int(imsi)
+
+
+
+                    #print(serialnumberdict[int(imsitoconvert)]['sn'])
+                    if imsitoconvert in serialnumberdict:
+                        print("found in snhelper, can convert to sn")
+                        realsn = serialnumberdict[int(imsitoconvert)]['sn']
+                        print(realsn)
+
+                    else:
+                        print("not found in helper, cannot convert to sn")
+                        realsn = "unknown"
+
+
+
+
                     
 
                 else:
                     print("msisdn not found in helper, we dont have iccid and imsi")
                     iccid = "N/A"
                     imsi = "N/A"
+                    realsn = "unknown"
 
                 dataprice = row['DATA-PRICE']
                 dataamount = row['DATA-AMOUNT']
@@ -79,7 +136,8 @@ def merge():
                 otherprice = row['OTHER-PRICE']
                 simstatus = row['SIM-STATUS']
                 operator = row['OPERATOR']
-                writer.writerow([msisdn, iccid, imsi, dataprice, dataamount, smsprice, smscount, otherprice, simstatus, operator])
+                print("realsn: ",realsn)
+                writer.writerow([msisdn, iccid, imsi, dataprice, dataamount, smsprice, smscount, otherprice, simstatus, realsn, operator])
     print("Merged")
 
     with open(dirpath+vfczfile, newline='', encoding="utf-8") as csvfile:
@@ -137,6 +195,8 @@ def merge():
                 operator = row['OPERATOR']
                 writer.writerow([msisdn, iccid, imsi, dataprice, dataamount, smsprice, smscount, otherprice, simstatus, operator])
 
+    print("succesfuly merged")
+
 
 
 def checkFiles():