got 7 to almost work. left side too nested

random.js

@@ -47,16 +47,38 @@ const getLeaves = (node)=>{
 	if(node.twoPath === undefined){
 		return node.value;
 	}
-	const twoPathLeftValue = getLeaves(node.twoPath.left);
-	const twoPathRightValue = getLeaves(node.twoPath.right);
 
+	let twoPathResult = [];
+	const twoPathLeftValue = getLeaves(node.twoPath.left); //2
+	const twoPathRightValue = getLeaves(node.twoPath.right); //[[2,3],[3,2]]
+	if(Number.isInteger(twoPathRightValue)){
+		twoPathResult[0] = twoPathLeftValue;
+		twoPathResult[1] = twoPathRightValue;
+	} else {
+		//[2] [[2,3],[3,2]]
+		twoPathRightValue[0].unshift(twoPathLeftValue)
+		twoPathRightValue[1].unshift(twoPathLeftValue);
+		twoPathResult = twoPathRightValue; 
+	}
+
+	let threePathResult = [];
 	if(node.threePath !== undefined){
 		const threePathLeftValue = getLeaves(node.threePath.left);
 		const threePathRightValue = getLeaves(node.threePath.right);
-		return [[twoPathLeftValue, twoPathRightValue], [threePathLeftValue, threePathRightValue]];
+		if(Number.isInteger(threePathRightValue)){
+			threePathResult[0] = threePathLeftValue;
+			threePathResult[1] = threePathRightValue;
+		} else {
+			threePathResult[0] = threePathLeftValue;
+			threePathResult = threePathResult.concat(threePathRightValue);
+		}
 	}
 	
-	return [twoPathLeftValue, twoPathRightValue];
+	if(threePathResult.length === 0){
+		return twoPathResult;
+	} else {
+		return [twoPathResult, threePathResult]
+	}
 }
 const leaves = getLeaves(tree);