#INPUT: String
#Output: String
def removeDuplicates(string):
# Initializing set and list
# Set for storing unique characters
mySet = set()
list = []
# Iterating input string
for ch in string:
if ch not in mySet:
mySet.add(ch)
list.append(ch)
return ''.join(list)
string = "Hello ClearTrail Technologies"
print(removeDuplicates(string))