diff --git a/Seminar 3/from-class/problem2.md b/Seminar 3/from-class/problem2.md
index be97995..a867998 100644
--- a/Seminar 3/from-class/problem2.md	
+++ b/Seminar 3/from-class/problem2.md	
@@ -1,6 +1,6 @@
 # Letters contained in a string
 
-Given a list of letters and a string, check if all the list's elements are contained in the string
+Given a list of letters and a string, check if all the list's elements are contained in the string.
 
 ---
 Sample input:
diff --git a/Seminar 3/from-class/problem3.md b/Seminar 3/from-class/problem3.md
index 3b90c8a..368c0c7 100644
--- a/Seminar 3/from-class/problem3.md	
+++ b/Seminar 3/from-class/problem3.md	
@@ -1,6 +1,6 @@
 # Draw a right-angled triangle
 
-Given an integer number, print a right-angled triangle using the char <i>*</i> with as many lines as the given integer
+Given an integer number, print a right-angled triangle using the char <i>*</i> with as many lines as the given integer.
 
 ---
 Sample input:
diff --git a/Seminar 3/from-class/problem4.md b/Seminar 3/from-class/problem4.md
index 82d5e2e..8a982c6 100644
--- a/Seminar 3/from-class/problem4.md	
+++ b/Seminar 3/from-class/problem4.md	
@@ -1,6 +1,6 @@
 # Draw an oposite right-angled triangle
 
-Given an integer number, print a right-angled triangle on the opposite side using the char <i>*</i> with as many lines as the given integer
+Given an integer number, print a right-angled triangle on the opposite side using the char <i>*</i> with as many lines as the given integer.
 
 ---
 Sample input:
diff --git a/Seminar 3/from-class/problem5.md b/Seminar 3/from-class/problem5.md
index 2e2ea6f..91ae3ad 100644
--- a/Seminar 3/from-class/problem5.md	
+++ b/Seminar 3/from-class/problem5.md	
@@ -1,6 +1,6 @@
 # Draw a pyramid
 
-Given an integer number, print a pyramid using the char <i>*</i> with as many lines as the given integer
+Given an integer number, print a pyramid using the char <i>*</i> with as many lines as the given integer.
 
 ---
 Sample input:
diff --git a/Seminar 3/homework/problem1-solved.py b/Seminar 3/homework/problem1-solved.py
new file mode 100644
index 0000000..51d2242
--- /dev/null
+++ b/Seminar 3/homework/problem1-solved.py	
@@ -0,0 +1,13 @@
+LETTERS_TO_EXCLUDE = ['a', 'e', 'i', 'o', 'u']
+
+words = ["vowel", "consonant"]
+new_words = []
+
+for word in words:
+    new_word = [] # the word will be array of characters wich will later be joined in a string
+    for letter in word:
+        if letter.casefold() not in LETTERS_TO_EXCLUDE:
+            new_word.append(letter)
+    new_words.append("".join(new_word))
+
+print(new_words)