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.
import numpy as np
print("0")
exit()
# Calculate intensity
N, K = [int(v) for v in input().split(" ")]
A_arr = np.array([int(v) for v in input().split(" ")])
step = np.arange(len(A_arr)) 
def Luminate(A_arr, i):
  isLuminated = np.abs(step - i) < A_arr
  return isLuminated

def get_Intensity(A_arr):
  return np.array([np.sum(Luminate(A_arr, i)) for i in range(len(A_arr))])
Intensity = A_arr
for i in range(K):
  Intensity = get_Intensity(Intensity+1)
  if np.sum(Intensity) == N**2:
    break
print(" ".join([str(v) for v in Intensity]))

S = input()

nickname = S[0:3]
print(nickname)