# Write a Python program to remove lowercase substrings from a given string.  
 import re
str1 = 'KDeoALOklOOHserfLoAJSIskdsf'
print("Original string:")
print(str1)
print("After removing lowercase letters, above string becomes:")
remove_lower = lambda text: re.sub('[a-z]', '', text)
result =  remove_lower(str1)
print(result)
