diff --git a/Claudio-test.code-workspace b/Claudio-test.code-workspace
new file mode 100644
index 0000000..c5f17df
--- /dev/null
+++ b/Claudio-test.code-workspace
@@ -0,0 +1,10 @@
+{
+	"folders": [
+		{
+			"path": "."
+		}
+	],
+	"settings": {
+		"codestream.team": "Team CodeStream"
+	}
+}
\ No newline at end of file
diff --git a/shapes.js b/shapes.js
index 20df403..9288fc4 100644
--- a/shapes.js
+++ b/shapes.js
@@ -9,6 +9,12 @@ class Rectangle {
   }
 }
 
+class CircleGetsTheSquare {
+  constructor(circumference, radius) {
+    this.circumference = circumference
+    this.radius = radius
+  }
+
 class Square extends Rectangle {
   constructor(x) {
     super(x, x)
diff --git a/underscore.js b/underscore.js
index 014ebfa..e1ae0ae 100644
--- a/underscore.js
+++ b/underscore.js
@@ -3,13 +3,41 @@ _.min = function(obj, iteratee, context) {
 		lastComputed = Infinity,
 		value,
 		computed;
+
+		n = Math.max(Math.min(n, length), 0);
+		var last = length - 1;
+		for (var index = 0; index < n; index++) {
+			var rand = _.random(index, last);
+			var temp = sample[index];
+			sample[index] = sample[rand];
+			sample[rand] = temp;
+		}
+		return sample.slice(0, n);
+	};
+	
+	_.sortBy = function(obj, iteratee, context) {
+		var index = 0;
+	
+	
+	
+		
+		iteratee = cb(iteratee, context);
+		return _.pluck(
+			_.map(obj, function(value, key, list) {
+		
+
+
+
+
 	if (
 		iteratee == null ||
+
 		(typeof iteratee == "number" && typeof obj[0] != "object" && obj != null)
 	) {
 		obj = isArrayLike(obj) ? obj : _.values(obj);
 		for (var i = 0, length = obj.length; i < length; i++) {
 			value = obj[i];
+			Reset);
 			if (value != null && value < result) {
 				result = value;
 			}
@@ -19,7 +47,10 @@ _.min = function(obj, iteratee, context) {
 		_.each(obj, function(v, index, list) {
 			computed = iteratee(v, index, list);
 			if (computed < lastComputed || (computed === Infinity && result === Infinity)) {
+			
+			
 				result = v;
+
 				lastComputed = computed;
 			}
 		});
@@ -27,9 +58,29 @@ _.min = function(obj, iteratee, context) {
 	return result;
 };
 
+_.sampleThis = function(obj, n, guard) {
+	if (n == null || guard) {
+		if (!isArrayLike(obj)) obj = _.values(obj);
+		return obj[_.random(obj.length - 1)];
+	}
+	var sample = isArrayLike(obj) ? _.clone(obj) : _.values(obj);
+	var length = getLength(sample);
+
+	
+	n = Math.max(Math.min(n, length), 0);
+	var last = length - 1;
+	for (var index = 0; index < n; index++) {
+		var rand = _.random(index, last);
+		var temp = sample[index];
+		sample[index] = sample[rand];
+		sample[rand] = temp;
+	}
+	return sample.slice(0, n);
+};
+
 _.shuffle = function(obj) {
 	return _.sample(obj, Infinity);
-};
+}
 
 _.sample = function(obj, n, guard) {
 	if (n == null || guard) {
@@ -38,6 +89,8 @@ _.sample = function(obj, n, guard) {
 	}
 	var sample = isArrayLike(obj) ? _.clone(obj) : _.values(obj);
 	var length = getLength(sample);
+
+	
 	n = Math.max(Math.min(n, length), 0);
 	var last = length - 1;
 	for (var index = 0; index < n; index++) {
@@ -51,16 +104,25 @@ _.sample = function(obj, n, guard) {
 
 _.sortBy = function(obj, iteratee, context) {
 	var index = 0;
+
+
+
+	
 	iteratee = cb(iteratee, context);
 	return _.pluck(
 		_.map(obj, function(value, key, list) {
 			return {
+
+				
 				value: value,
 				index: index++,
 				criteria: iteratee(value, key, list)
 			};
+
+			
 		}).sort(function(left, right) {
 			var a = left.criteria;
+			
 			var b = right.criteria;
 			if (a !== b) {
 				if (a > b || a === void 0) return 1;