diff --git a/src/main/kotlin/App.kt b/src/main/kotlin/App.kt
index 9654a88..3f1198c 100644
--- a/src/main/kotlin/App.kt
+++ b/src/main/kotlin/App.kt
@@ -18,120 +18,108 @@ import entity.NodeImpl
 import entity.Position
 import entity.PositionLinkingRule
 import entity.SumAction
-import kotlinx.coroutines.runBlocking
 
 /**
  * Max num of steps in simulation.
  */
-const val MAX_STEPS = 10
+const val MAX_STEPS = 1000
 
 /**
  * Main Function.
  */
-fun main() {
-    runBlocking {
-        // Simple initialization of a simulation.
-        val time = DoubleTime(0.0)
-        val condition = DummyCondition()
+suspend fun main() {
+    // Simple initialization of a simulation.
+    val time = DoubleTime(0.0)
+    val condition = DummyCondition()
 
-        val environment = EnvironmentImpl()
-        val linkingRule = PositionLinkingRule(1.0, environment = environment)
-        environment.setLinkingRule(linkingRule)
-        val node1 = NodeImpl(1)
-        node1.addContent(ContentImpl(1))
-        val node2 = NodeImpl(2)
-        node2.addContent(ContentImpl(1))
-        val node3 = NodeImpl(3)
-        node3.addContent(ContentImpl(1))
-        val node4 = NodeImpl(4)
-        node4.addContent(ContentImpl(1))
-        listOf(node1, node2, node3, node4).forEach { node ->
-            environment.addNode(
-                node,
-                Position(0.0, 0.0),
-            )
-        }
-        val moveAction = MoveNodeAction(environment)
-        val sumAction = SumAction(environment)
+    val environment = EnvironmentImpl()
+    val linkingRule = PositionLinkingRule(1.0, environment = environment)
+    environment.setLinkingRule(linkingRule)
+    val node1 = NodeImpl(1)
+    node1.addContent(ContentImpl(1))
+    val node2 = NodeImpl(2)
+    node2.addContent(ContentImpl(1))
+    val node3 = NodeImpl(3)
+    node3.addContent(ContentImpl(1))
+    val node4 = NodeImpl(4)
+    node4.addContent(ContentImpl(1))
+    listOf(node1, node2, node3, node4).forEach { node ->
+        environment.addNode(
+            node,
+            Position(0.0, 0.0),
+        )
+    }
+    val moveAction = MoveNodeAction(environment)
+    val sumAction = SumAction(environment)
 
-        val scheduler = ListScheduler()
-        val engine = EngineImpl(environment, scheduler, MAX_STEPS, time)
+    val scheduler = ListScheduler()
+    val engine = EngineImpl(environment, scheduler, MAX_STEPS, time)
 
-        val event1 = EventImpl(
-            node1,
-            arrayListOf(condition),
-            arrayListOf(moveAction, sumAction),
-            engine = engine,
-            environment = environment,
-        )
-        val event2 = EventImpl(
-            node1,
-            arrayListOf(condition),
-            arrayListOf(moveAction, sumAction),
-            engine = engine,
-            environment = environment,
-        )
-        node1.addEvent(event1)
-        node1.addEvent(event2)
+    val event1 = EventImpl(
+        node1,
+        arrayListOf(condition),
+        arrayListOf(moveAction, sumAction),
+        environment = environment,
+    )
+    val event2 = EventImpl(
+        node1,
+        arrayListOf(condition),
+        arrayListOf(moveAction, sumAction),
+        environment = environment,
+    )
+    node1.addEvent(event1)
+    node1.addEvent(event2)
 
-        val event3 = EventImpl(
-            node2,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        val event4 = EventImpl(
-            node2,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        node2.addEvent(event3)
-        node2.addEvent(event4)
+    val event3 = EventImpl(
+        node2,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    val event4 = EventImpl(
+        node2,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    node2.addEvent(event3)
+    node2.addEvent(event4)
 
-        val event5 = EventImpl(
-            node3,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        val event6 = EventImpl(
-            node3,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        node3.addEvent(event5)
-        node3.addEvent(event6)
+    val event5 = EventImpl(
+        node3,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    val event6 = EventImpl(
+        node3,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    node3.addEvent(event5)
+    node3.addEvent(event6)
 
-        val event7 = EventImpl(
-            node4,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        val event8 = EventImpl(
-            node4,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        val event9 = EventImpl(
-            node4,
-            arrayListOf(condition),
-            arrayListOf(moveAction),
-            engine = engine,
-            environment = environment,
-        )
-        node4.addEvent(event7)
-        node4.addEvent(event8)
-        node4.addEvent(event9)
-        engine.start()
-    }
+    val event7 = EventImpl(
+        node4,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    val event8 = EventImpl(
+        node4,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    val event9 = EventImpl(
+        node4,
+        arrayListOf(condition),
+        arrayListOf(moveAction),
+        environment = environment,
+    )
+    node4.addEvent(event7)
+    node4.addEvent(event8)
+    node4.addEvent(event9)
+    engine.start()
 }