Problem:
Score : 200 points

Problem Statement

Takahashi loves gold coins. He gains 1000 happiness points for each 500-yen coin he has and gains 5 happiness points for each 5-yen coin he has. (Yen is the currency of Japan.)

Takahashi has X yen. If he exchanges his money so that he will gain the most happiness points, how many happiness points will he earn?

(We assume that there are six kinds of coins available: 500-yen, 100-yen, 50-yen, 10-yen, 5-yen, and 1-yen coins.)

Constraints

0 \leq X \leq 10^9

X is an integer.

Input

Input is given from Standard Input in the following format:

X

Output

Print the maximum number of happiness points that can be earned.

Sample Input 1

1024

Sample Output 1

2020

By exchanging his money so that he gets two 500-yen coins and four 5-yen coins, he gains 2020 happiness points, which is the maximum number of happiness points that can be earned.

Sample Input 2

0

Sample Output 2

0

He is penniless - or yenless.

Sample Input 3

1000000000

Sample Output 3

2000000000

He is a billionaire - in yen.

Solution in PyPy3 (7.3.0) (judge verdict: Runtime Error)

from collections import deque
import copy

X, Y, A, B, C = map(int, input().split())
p = list(map(int, input().split()))
q = list(map(int, input().split()))
r = list(map(int, input().split()))

p.sort(reverse=True)
q.sort(reverse=True)
r.sort(reverse=True)

p1 = deque(p)
q1 = deque(q)
r1 = deque(r)
p2 = copy.deepcopy(p1)
q2 = copy.deepcopy(q1)
r2 = copy.deepcopy(r1)


ans = 0

ans1 = 0
for _ in range(X):
    if len(r1) > 0:
        if p1[0] > r1[0]:
            ans1 += p1.popleft()
        else:
            ans1 += r1.popleft()
    else:
        ans1 += p1.popleft()

for _ in range(Y):
    if len(r1) > 0:
        if q1[0] > r1[0]:
            ans1 += q1.popleft()
        else:
            ans1 += r1.popleft()
    else:
        ans1 += q1.popleft()

ans2 = 0
for _ in range(Y):
    if len(r2) > 0:
        if q2[0] > r2[0]:
            ans2 += q2.popleft()
        else:
            ans2 += r2.popleft()
    else:
        ans2 += q2.popleft()

for _ in range(X):
    if len(r2) > 0:
        if p2[0] > r2[0]:
            ans2 += p2.popleft()
        else:
            ans2 += r2.popleft()
    else:
        ans2 += p2.popleft()

ans = max(ans1, ans2)
print(ans)