diff --git a/unit3_ex3.1.1.py b/unit3_ex3.1.1.py
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+# exercise 3.1.1 from unit 3
+# What will be the result of the following expression?
+output = "He" + "l" * 2 + "o" + " Python " + str(7.2 / 2) + "." + str(3)
+print(output)
+# Enswer: 'Hello Python 3.6.3'