diff --git a/Exchanger/exchanger.go b/Exchanger/exchanger.go
index 6f5a93a..090c7a6 100644
--- a/Exchanger/exchanger.go
+++ b/Exchanger/exchanger.go
@@ -21,15 +21,14 @@ func _deploy(data interface{}, isUpdate bool) {
 	})
 
 	if len(args.zaCoinHash) != interop.Hash160Len {
-                panic("invalid hash of zaCoin contract")
-        }
-
+		panic("invalid hash of zaCoin contract")
+	}
 
 	ctx := storage.GetContext()
 	storage.Put(ctx, zaCoinHashKey, args.zaCoinHash)
 }
 
-func BuyZaCoin(gasCount int){
+func BuyZaCoin(gasCount int) bool {
 	playerOwner := runtime.GetScriptContainer().Sender
 
 	playerBalance := gas.BalanceOf(playerOwner)
@@ -40,12 +39,19 @@ func BuyZaCoin(gasCount int){
 
 	contractHash := runtime.GetExecutingScriptHash()
 	transferredGas := gas.Transfer(playerOwner, contractHash, gasCount, nil).(bool)
+
 	if !transferredGas {
-                panic("failed to transfer gas")
-        }
-	transferredZaCoin := contract.Call(zaCoinHash, "transfer", contract.All, contractHash, playerBalance, gasCount, nil).(bool)
+		panic("failed to transfer gas")
+	}
+	resultAmountZaCoin := gasCount * 57
+	transferredZaCoin := contract.Call(zaCoinHash, "transfer", contract.All, contractHash, playerBalance, resultAmountZaCoin, nil).(bool)
 
 	if !transferredZaCoin {
 		panic("failed to transfer zaCoins")
+	} else {
+		runtime.Log("Gas balance: ", gas.BalanceOf(playerOwner))
+		runtime.Log("ZaCoin balance: ", contract.Call(zaCoinHash, "balanceOf", contract.ReadStates, playerOwner))
 	}
+
+	return transferredZaCoin
 }