diff --git a/gpc.py b/gpc.py
index 712657f..487d63a 100644
--- a/gpc.py
+++ b/gpc.py
@@ -70,9 +70,10 @@ class Data(BaseRecord):
       self.date = date.strftime("%d%m%y")
 
    def to_string(self):
-      print(f"{self.record_type.value}")
-      print(f"{self.account}")
-      print(f"{self.payer_account}")
+      print(f"{self.record_type.value:03}")
+      print(f"{str(self.account)[:16].zfill(16)}")
+      print(f"{str(self.payer_account).rjust(16, '0')[:16]}")
+      print(f"{str(self.payer_account).rjust(16, '0')[:16]}")
 
       return (f"{self.record_type.value:03}{str(self.account)[:16].zfill(16)}{str(self.payer_account).rjust(16, '0')[:16]}"
         f"{str(self.no)[:13].zfill(13)}{int(self.balance):012}{self.code.value:1}{self.variable:010}"