diff --git a/doc/sample/CaesarCipher.im b/doc/sample/CaesarCipher.im old mode 100755 new mode 100644 diff --git a/doc/sample/FizzBuzz.im b/doc/sample/FizzBuzz.im old mode 100755 new mode 100644 diff --git a/doc/sample/String.im b/doc/sample/String.im old mode 100755 new mode 100644 diff --git a/doc/sample/Sum.im b/doc/sample/Sum.im old mode 100755 new mode 100644 diff --git a/doc/sample/Vehicle.im b/doc/sample/Vehicle.im old mode 100755 new mode 100644