import sys
from math import log

def debug(x, table):
    for name, val in table.items():
        if x is val:
            print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr)
            return None

def solve():
    N = int(input())
    B = int(input())
    a = [float(i) for i in input().split()]

    dif = sum(a_i * B**(a_i - 1) for a_i in a)
    integral = 0
    for a_i in a:
        if a_i != -1:
            integral += B**(a_i + 1) / (a_i + 1)
        else:
            integral += log(B)

    print(dif)
    print(integral)
    pass

if __name__ == '__main__':
    solve()