When you asked some guy in your class his name, he called himself S, where S is a string of length between 3 and 20 (inclusive) consisting of lowercase English letters. You have decided to choose some three consecutive characters from S and make it his nickname. Print a string that is a valid nickname for him.
S = map(str,input().split())

print("S[0]" + "S[1]" + "S[2]")
S = str(input())
print(S[0] + S[1] + S[2])
