 		
 		dispatch_async(queua1) {
 			a1 = GKAction(type: "A")
-			for i in 1...1000 {
+			for i in 1...10 {
 				let prop: String = String(i)
 				a1!.addGroup(prop)
 				a1!.addGroup("test")

					a1![prop] = nil
				}
				dispatch_async(self.queue3) {
					for i in 1...1000 {
						let prop: String = String(i)
						a1!.addGroup(prop)
						a1!.addGroup("test")

			}
			
			dispatch_async(self.queue2) {
				for i in 1...5 {
					let prop: String = String(i)
					a1!.removeGroup(prop)
					a1!.addGroup("test")
