diff --git a/ex1/ex1.pdf b/ex1.pdf
similarity index 100%
rename from ex1/ex1.pdf
rename to ex1.pdf
diff --git a/ex2/ex2.pdf b/ex2.pdf
similarity index 100%
rename from ex2/ex2.pdf
rename to ex2.pdf
diff --git a/ex3/ex3.pdf b/ex3.pdf
similarity index 100%
rename from ex3/ex3.pdf
rename to ex3.pdf
diff --git a/ex4/ex4.pdf b/ex4.pdf
similarity index 100%
rename from ex4/ex4.pdf
rename to ex4.pdf