diff --git a/bootcamp/contrib/student_22.py b/bootcamp/contrib/student_22.py
new file mode 100644
index 0000000..42dba56
--- /dev/null
+++ b/bootcamp/contrib/student_22.py
@@ -0,0 +1,20 @@
+def sequence_fasta(sequence, name='sequence'):
+    """Prints a sequence in fasta format
+
+    Parameters
+    ----------
+    sequence : str
+        The string to count within
+    name : str
+        The name of your sequence
+
+    Returns
+    -------
+    str
+        The fasta formatted sequence
+
+    """
+
+    fasta = '>' + name + '\n' + sequence + '\n'
+
+    return fasta
diff --git a/bootcamp/core/student_22.py b/bootcamp/core/student_22.py
index b904827..51bc76f 100644
--- a/bootcamp/core/student_22.py
+++ b/bootcamp/core/student_22.py
@@ -16,6 +16,9 @@ def count_substring(string, substring):
     """
     count = 0
 
+    string = string.upper()
+    substring = substring.upper()
+
     string_length = len(string)
     substring_length = len(substring)
     n_subsequences = string_length - substring_length + 1
diff --git a/bootcamp/core/tests/test_student_22.py b/bootcamp/core/tests/test_student_22.py
index 7e6e004..1d87780 100644
--- a/bootcamp/core/tests/test_student_22.py
+++ b/bootcamp/core/tests/test_student_22.py
@@ -1,8 +1,9 @@
 from bootcamp.core.student_22 import count_substring  # noqa
+from bootcamp.contrib.student_22 import sequence_fasta
 
 
 def test_count_substring_single():
-    test_string = "CGCTAGCGT"
+    test_string = "CgCtAGCGt"
     test_substring = "TAG"
 
     expected_count = 1
@@ -12,7 +13,7 @@ def test_count_substring_single():
 
 def test_count_substring_repeated():
     test_string = "AGCTAGCAGT"
-    test_substring = "AGC"
+    test_substring = "agc"
 
     expected_count = 2
     observed_count = count_substring(test_string, test_substring)
@@ -20,9 +21,18 @@ def test_count_substring_repeated():
 
 
 def test_count_substring_none():
-    test_string = "AGTCCCCTAGA"
+    test_string = "agtcccctaga"
     test_substring = "AAA"
 
     expected_count = 0
     observed_count = count_substring(test_string, test_substring)
     assert expected_count == observed_count
+
+
+def test_fasta_fun():
+    test_string = "agtcccctaga"
+    test_name = "test1"
+
+    expected_out = ">test1\nagtcccctaga\n"
+    observed_out = sequence_fasta(sequence=test_string, name=test_name)
+    assert expected_out == observed_out