diff --git a/aula204/main.py b/aula204/main.py
index 053d372..71fb91d 100644
--- a/aula204/main.py
+++ b/aula204/main.py
@@ -1,14 +1,43 @@
 import sys
+import time
 
+from PySide6.QtCore import QObject, Signal, Slot
 from PySide6.QtWidgets import QApplication, QWidget
 from ui_workerui import Ui_myWidget
 
 
+class Worker1(QObject):
+    started = Signal(str)
+    progressed = Signal(str)
+    finished = Signal(str)
+
+    def run(self):
+        value = '0'
+        self.started.emit(value)
+        for i in range(5):
+            value = str(i)
+            self.progressed.emit(value)
+            time.sleep(1)
+        self.finished.emit(value)
+
+
 class MyWidget(QWidget, Ui_myWidget):
     def __init__(self, parent=None):
         super().__init__(parent)
         self.setupUi(self)
 
+        self.button1.clicked.connect(self.hardWork1)
+        self.button2.clicked.connect(self.hardWork2)
+
+    def hardWork1(self):
+        self.label1.setText('1 terminado')
+
+    def hardWork2(self):
+        for i in range(5):
+            print(i)
+            time.sleep(1)
+        self.label2.setText('2 terminado')
+
 
 if __name__ == '__main__':
     app = QApplication(sys.argv)