You are given three words s_1, s_2 and s_3, each composed of lowercase English letters, with spaces in between. Print the acronym formed from the uppercased initial letters of the words.
a, b, c = input().split()

answer = (a[0] + b[0] + c[0]).upper
print(answer)
a, b, c = input().split()

answer = (a[0] + b[0] + c[0]).upper()
print(answer)
