import math
log = math.log
N = int(input())
B = int(input())
A = list(map(float, input().split()))
df, F = 0, 0
for i in range(N):
    df += A[i] * (B ** (A[i] - 1.0))
    if A[i] != -1.0:
        F += (B ** (A[i] + 1)) / (A[i] + 1)
    else:
        F += log(B)
print(df)
print(F)