import numpy as np
N=int(input())
B=int(input())
a=list(map(float,input().split()))
diff=0
integral=0
for i in range(N):
  diff+=(a[i]*B**(a[i]-1))
  if a[i]==0:
    integral+=B
  elif a[i]==-1:
    integral+=(np.log(B))
  else:
    integral+=(B**(a[i]+1)/(a[i]+1))
print(diff)
print(integral)