# Welcome to the Casino**Category :** algo
## Description :Have a warmup algo challenge.
nc not-really-math.hsc.tf 1337
not-really-math.pdf (documentation regarding the algorithm)
## Solution :This is simple python script where it connects and reads the data line by line using pwntools.```#!/usr/bin/env python3
import sysfrom pwn import *
HOST = 'not-really-math.hsc.tf'PORT = 1337
def operator(given_str):    new_str = '((' + given_str.replace('a', '+').replace('m', ')*(') + ')) % (2**32 - 1)'    return str(eval(new_str))
conn = remote(HOST, PORT)print(conn.recvline())given_str = conn.recvline()print(given_str.decode('utf-8'))conn.send(operator(given_str.decode('utf-8').replace('\n', '')) + "\n")
for i in range(11):    given_str = conn.recvline()    print(given_str.decode('utf-8'))    conn.send(operator(given_str.decode('utf-8').replace('\n', '')[2:]) + "\n")
#while True:print(conn.recvline())```
Here the core logic is *operator()* function where the received string is taken and modified for the python eval function.
a replaced with `+`
m replaced with `)*(`
Note: add `(` & `)` at begining & ending as required.# Flag :flag{yknow_wh4t_3ls3_is_n0t_real1y_math?_c00l_m4th_games.com}