diff --git a/letter_digit.py b/letter_digit.py
index e69de29..c3c6672 100644
--- a/letter_digit.py
+++ b/letter_digit.py
@@ -0,0 +1,16 @@
+def letterAndDigit(s):
+    dictionary = dict()
+    count_of_letters = 0
+    count_of_digits = 0
+    s = s.lower()
+    for i in range(len(s)):
+        if s[i] >= 'a' and s[i] <= 'z':
+            count_of_letters += 1
+        elif s[i] >= '0' and s[i] <= '9':
+            count_of_digits += 1
+    dictionary['DIGITS'] = count_of_digits
+    dictionary['LETTERS'] = count_of_letters
+    return dictionary
+
+s = 'world! 234'
+print letterAndDigit(s)
diff --git a/letter_digit.pyc b/letter_digit.pyc
new file mode 100644
index 0000000..9db9939
Binary files /dev/null and b/letter_digit.pyc differ
diff --git a/tests/__init__.pyc b/tests/__init__.pyc
new file mode 100644
index 0000000..0a2034e
Binary files /dev/null and b/tests/__init__.pyc differ
diff --git a/tests/test_letterAndDigit.pyc b/tests/test_letterAndDigit.pyc
new file mode 100644
index 0000000..69219df
Binary files /dev/null and b/tests/test_letterAndDigit.pyc differ