8 almost works

random.js

@@ -39,7 +39,7 @@ const breakDown = (node)=>{
 	return node;
 }
 
-const tree = breakDown({value:9});
+const tree = breakDown({value:8});
 
 console.dir(tree, {depth:null});
 
@@ -72,8 +72,13 @@ const getLeaves = (node)=>{
 			threePathResult[0] = threePathLeftValue;
 			threePathResult[1] = threePathRightValue;
 		} else {
-			threePathResult[0] = threePathLeftValue;
+			if(Number.isInteger(threePathRightValue[0])){
-			threePathResult = threePathResult.concat(threePathRightValue);
+				threePathRightValue.unshift(threePathLeftValue);
+			} else {
+				threePathRightValue[0].unshift(threePathLeftValue)
+				threePathRightValue[1].unshift(threePathLeftValue);
+			}
+			threePathResult = threePathRightValue;
 		}
 	}