diff --git a/ex1.pdf b/ex1/ex1.pdf
similarity index 100%
rename from ex1.pdf
rename to ex1/ex1.pdf
diff --git a/ex2.pdf b/ex2/ex2.pdf
similarity index 100%
rename from ex2.pdf
rename to ex2/ex2.pdf
diff --git a/ex3.pdf b/ex3/ex3.pdf
similarity index 100%
rename from ex3.pdf
rename to ex3/ex3.pdf
diff --git a/ex4.pdf b/ex4/ex4.pdf
similarity index 100%
rename from ex4.pdf
rename to ex4/ex4.pdf
diff --git a/ex5.pdf b/ex5/ex5.pdf
similarity index 100%
rename from ex5.pdf
rename to ex5/ex5.pdf
diff --git a/ex6.pdf b/ex6/ex6.pdf
similarity index 100%
rename from ex6.pdf
rename to ex6/ex6.pdf
diff --git a/ex7.pdf b/ex7/ex7.pdf
similarity index 100%
rename from ex7.pdf
rename to ex7/ex7.pdf
diff --git a/ex8.pdf b/ex8/ex8.pdf
similarity index 100%
rename from ex8.pdf
rename to ex8/ex8.pdf