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+# Personal Project9 : Thread(2020.08.18)
+
+## software testing
+
+### Before
+![91](/uploads/f69adacfe0260f1f68d326c53a9ff51d/91.PNG)
+
+### After
+![45](/uploads/1db559f2f19e96624f096de05ad9db86/45.PNG)
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