N = int(eval(input()))

D,X = list(map(int,input().split()))

A = [int(eval(input())) for _ in range(N)]



from math import ceil

ans = 0

for i in range(N):

    ans += ceil(D/A[i])



print((ans+X))



# Python3 (3.4.3)

import sys

input = sys.stdin.readline



# -------------------------------------------------------------

# function

# -------------------------------------------------------------





# -------------------------------------------------------------

# main

# -------------------------------------------------------------

N = int(eval(input()))

D,X = list(map(int,input().split()))

A = [int(eval(input())) for _ in range(N)]

 

from math import ceil

ans = 0

for i in range(N):

    ans += ceil(D/A[i])

 

print((ans+X))
N = int(eval(input()))
D, X = list(map(int, input().split()))
A = [int(eval(input())) for _ in range(N)]
from math import ceil

ans = 0
for i in range(N):
    ans += ceil(D / A[i])
print((ans + X))

# Python3 (3.4.3)
import sys

input = sys.stdin.readline
# -------------------------------------------------------------
# function
# -------------------------------------------------------------
# -------------------------------------------------------------
# main
# -------------------------------------------------------------
N = int(eval(input()))
D, X = list(map(int, input().split()))
A = [int(eval(input())) for _ in range(N)]
from math import ceil

ans = 0
for i in range(N):
    ans += ceil(D / A[i])
print((ans + X))

+# Python3 (3.4.3) +import sys + +input = sys.stdin.readline +# function +# main