import math
lambda_ = 3

q1 = (math.e ** -(lambda_) * lambda_ ** 0) / 1 
print(f"{round(q1,3):.3f}")

lambda_2 = lambda_ * 2
q2 = sum([(math.e ** -(lambda_2) * lambda_2 ** k) / math.factorial(k) for k in [0,1]])
print(1 - round(q2,3))