from math import *

N = int(input())
B = int(input())
A = list(map(float, input().split()))
D, I = 0, 0
for i in range(N):
    D += A[i] * B ** (A[i] - 1)
    if round(A[i]) == -1:
        I += log(B)
    else:
        I += B ** (A[i] + 1)/(A[i] + 1)
    
print(D)
print(I)