diff --git a/Strings/497. Lowercase to uppercase.py b/Strings/497. Lowercase to uppercase.py
new file mode 100644
index 0000000..8149685
--- /dev/null
+++ b/Strings/497. Lowercase to uppercase.py	
@@ -0,0 +1,19 @@
+'''
+Consider the string str1 containing only lowercase letters, return the string with the same letters in uppercase.
+
+Example 1:
+Input: str1 = "Source, screen and assess leading ML developers & data Scientists"
+Output: SOURCE, SCREEN AND ASSESS LEADING ML DEVELOPERS & DATA SCIENTISTS
+
+Example 2:
+Input: str1 = "Boost your AI/ML skills and get hired"
+Output: BOOST YOUR AI/ML SKILLS AND GET HIRED
+'''
+
+class Solution:
+   def to_upper(self, str1):
+       return str1.upper()
+       
+sol = Solution()
+# str1 = "Source, screen and assess leading ML developers & data Scientists"
+print(sol.to_upper(str1))