# Coinslot
```python#!/usr/bin/env python
from pwn import *
r = remote('misc.chal.csaw.io', '8000')
def process():    value = float(r.recvline()[1:])
    bills = [10000, 5000, 1000, 500, 100, 50, 20, 10, 5, 1, 0.50, 0.25, 0.10, 0.05, 0.01]    counter = dict.fromkeys(bills, 0)
    print('input: ' + str(value))    for bill in bills:        # the second condition is because we are using float        while value - bill > 0 or abs(value - bill) < 0.005:            counter[bill] += 1            value -= bill
        r.recvuntil(': ')        r.sendline(str(counter[bill]))
    return r.recvline()
while True:  print process()```
```$ python ./coinbase.py DEBUG[ .. SNIP .. ]
[DEBUG] Sent 0x2 bytes:    '1\n'[DEBUG] Received 0xe bytes:    'nickels (5c): '[DEBUG] Sent 0x2 bytes:    '0\n'[DEBUG] Received 0xe bytes:    'pennies (1c): '[DEBUG] Sent 0x2 bytes:    '2\n'[DEBUG] Received 0x47 bytes:    'correct!\n'    'flag{started-from-the-bottom-now-my-whole-team-fucking-here}\n'    '\n'correct!
Traceback (most recent call last):  File "./coinbase.py", line 26, in <module>    print process()  File "./coinbase.py", line 8, in process    value = float(r.recvline()[1:])ValueError: could not convert string to float: lag{started-from-the-bottom-now-my-whole-team-fucking-here}
[*] Closed connection to misc.chal.csaw.io port 8000```
