diff --git a/homeworks/sergii.suprun_differz/homework_1/README.md b/homeworks/sergii.suprun_differz/homework_1/README.md
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+bash-3.2$ xcodebuild -version
+Xcode 10.1
+Build version 10B61
+
+bash-3.2$ swift -version
+Apple Swift version 4.2.1 (swiftlang-1000.11.42 clang-1000.11.45.1)
+Target: x86_64-apple-darwin18.0.0
+
+bash-3.2$ xcode-select -version
+xcode-select version 2354.