import math

n = int(input())
B = float(input())
a_list = list(map(float, input().split()))

derivative_sum = 0.0
integral_sum = 0.0

for a in a_list:
    # Calculate derivative term
    derivative_term = a * (B ** (a - 1))
    derivative_sum += derivative_term
    
    # Calculate integral term
    if a == -1.0:
        integral_term = math.log(B)
    else:
        integral_term = (B ** (a + 1)) / (a + 1)
    integral_sum += integral_term

# Output the results with sufficient precision
print(derivative_sum)
print(integral_sum)