# PPC_EZ

###### tags: `Linux to Python`

## hello world

>直接nc就行了
:::success
CTF{Hel10WorLD123}
:::

## 3rd

from pwn import *

r=remote("120.114.62.214",2400)

r.recvlines(7)

r.recvuntil(b'numbers : ')

l = r.recvline().split()


for i in range (len(l)) :
	l[i]=int(l[i])
	
ans=sorted(l)[-3]

r.sendlineafter('answer : ',str(ans))
#print answer

print(r.recvline())
#print flag

r.close()
  

:::success
CTF{yoUaReInth33RdpL4c3}
:::

## calendar

from pwn import *
r=remote("120.114.62.214",2402)
r.recvlines(9)
#r.recvuntil("answer : leap")
for i in range (100):
	r.recvline()
	ac=r.recvline().split()
	year=int(ac[2])
	if (year%400==0) or (year%4==0 and year%100!=0):
		r.sendlineafter(b'answer : ', b"leap")
	else:
		r.sendlineafter(b'answer : ', b"ordinary")
print(r.recvline().decode())	 
r.close()

:::success
CTF{2O20HapPY1e4pYE4r!!!}
:::

## count

from pwn import *
r = remote("120.114.62.214", 2403)

r.recvlines(3)

for i in range (100):
	r.recvline()
	l = r.recvline().split()
	r.sendline(l[2])
	
print(r.recvline().decode())

r.close

:::success
CTF{gOOD4tMatHYOUarE}
:::

## beautify


from pwn import *
r = remote("120.114.62.214", 2401)

r.recvlines(8)
r.recvuntil("sentence : ")

st=r.recvline().decode().lower()
stt=''

for i in st:
	if (i=='_' or i=='-'):
		stt=stt+' '
	else:
		stt=stt+i
r.recvuntil("answer : ")
r.sendline(stt.encode())			
ppc=r.recvline()
	
print(r.recvline().decode())

r.close()

:::success
CTF{NoWYoUKNoWhOWt0STRinG}
:::

## digit

from pwn import *
r=remote("120.114.62.214",2404)


r.recvlines(1)

for i in range (100):
	r.recvlines(3)
	a = []

	for x in range (7):
		a.append(r.recvline().decode().rstrip())
		print(a[x])

	r.recvuntil(b'What is this digit? ')

		

	if a[0]=="#######":
		if a[1] =="#    #":
			r.sendline(b'7')
			print("7")

		else:	
			r.sendline(b'5')
			print("5")

	elif a[0]=="   #" :
		r.sendline(b'1')
		print("1")

	elif a[0]=='  ###' :
			r.sendline(b'0')
			print("0")

	elif a[0]=='#' :
		r.sendline(b'4')
		print("4") 

	else:
		if a[3]==" #####":
			if a[2]=="      #":
				if a[6]=="#######":
					r.sendline(b'2')
					print("2")

				else:
					r.sendline(b'3')
					print("3") 

			else:
				r.sendline(b'8')
				print("8") 			 

		elif a[3]=="######":
			r.sendline('6')
			print("6") 

		elif a[3]==" ######":
			r.sendline(b'9')
			print("9")

		else:
			print('false')	

r.recvline()			

print(r.recvline().decode())

#print flag



r.close()

 

:::success
CTF{n0WYouc4nSee}
:::

from pwn import *
r=remote("120.114.62.214",2406)
r.recvlines(14)

for i in range (100):
	r.recvline()
	
	idd=r.recvline().split()
	
	ap=idd[2].decode()
	print(ap)
	summ=0
	ill=0
	print(len(idd[2]))
	
	for f in range (1,10):
		summ+=int(ap[f])
	if (len(idd[2])==10)and(summ%3==0)and('A' <= ap[0] <= 'Z'):
		ill=1
	else:
		ill=0
			
		
		
	r.recvuntil("answer : ")
	if ill==1:
		r.sendline("valid")
		print(b"valid")
	else:	
		r.sendline("invalid")	
		print(b"invalid")		
print(r.recvline().decode())			


	
r.close()