diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 1.png b/lesson#27 - in, out, inout type qualifiers/slides/1.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 1.png rename to lesson#27 - in, out, inout type qualifiers/slides/1.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 2.png b/lesson#27 - in, out, inout type qualifiers/slides/2.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 2.png rename to lesson#27 - in, out, inout type qualifiers/slides/2.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 3.png b/lesson#27 - in, out, inout type qualifiers/slides/3.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 3.png rename to lesson#27 - in, out, inout type qualifiers/slides/3.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 6.png b/lesson#27 - in, out, inout type qualifiers/slides/4.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 6.png rename to lesson#27 - in, out, inout type qualifiers/slides/4.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 13.png b/lesson#27 - in, out, inout type qualifiers/slides/5.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 13.png rename to lesson#27 - in, out, inout type qualifiers/slides/5.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 4.png b/lesson#27 - in, out, inout type qualifiers/slides/6.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 4.png rename to lesson#27 - in, out, inout type qualifiers/slides/6.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 5 (9).png b/lesson#27 - in, out, inout type qualifiers/slides/7.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 5 (9).png rename to lesson#27 - in, out, inout type qualifiers/slides/7.png diff --git a/lesson#27 - in, out, inout type qualifiers/slides/Group 7 (2).png b/lesson#27 - in, out, inout type qualifiers/slides/8.png similarity index 100% rename from lesson#27 - in, out, inout type qualifiers/slides/Group 7 (2).png rename to lesson#27 - in, out, inout type qualifiers/slides/8.png