I have run this code with many inputs and It comes correctly, but when I submit it it shows wrong answer. I do not know what is wrong with my code could someone help? All suggestions are appreciated. Thank You.

```
import math
for itt in range(int(input())):
n, r = map(int, input().split(" "))
a = list(map(int, input().split(" ")))
b = list(map(int, input().split(" ")))
c = []
# Lines 10 to 19 are to sort a and keep the same order between a and b
for i in range(len(a)):
c.append((a[i], b[i]))
c.sort()
a.clear()
b.clear()
for i in range(len(c)):
a.append(c[i][0])
b.append(c[i][1])
# Makes a new list which has the money the chef needs to pay
money_req = []
for i in range(len(a)):
money_req.append(a[i] - b[i])
# i is basically the number of sweets the chef can buy
i = 0
while len(a) > 0 and r >= min(a):
# It take the index of the min value of money_req and gets the value of a[index]
if r >= a[money_req.index(min(money_req))]:
# It takes the index of the min value of money_req and gets the value of a[index] and it is subtracted from r and 1 is added and the whole thing is divided by min(money_req) which is rounded to the top
i += math.ceil((r - a[money_req.index(min(money_req))] + 1) / min(money_req))
r -= (i * min(money_req))
# removes from respective list as it cannot be used again
a.remove(a[money_req.index(min(money_req))])
b.remove(b[money_req.index(min(money_req))])
money_req.remove(min(money_req))
print(i)
```