diff --git a/sumAll/sumAll.js b/sumAll/sumAll.js
index 1429afa..cb41f57 100644
--- a/sumAll/sumAll.js
+++ b/sumAll/sumAll.js
@@ -1,6 +1,6 @@
 const sumAll = function(min, max) {
-  if (min < 0 || max < 0) return "ERROR";
   if (typeof min !== "number" || typeof max !== "number") return "ERROR";
+  if (min < 0 || max < 0) return "ERROR";
   if (min > max) {
     const temp = min;
     min = max;