Outputs missing

[SamAnw]

print(LED[LED1], LED[LED2])

Your only printing two things. Maybe you mean to indent things so that it's all in your loop?

Yes basically that's it, but I dont know how to do that :/

---

a=file.read()
This reads the entire file into A
so after line 4, add
for line in a:
state = line.strip().split()
...

remove current line 5
also use more meaningful names, single letter names will get you in trouble quickly because you won't be able to remember what's what.

Hey!
So I changed my code according to your suggestions and this is what the code looks like:

from math import *
txt = "Prob06.in.txt"
file = open(txt,"r")
a=file.read()
for line in a:
    state=line.strip().split()
pos = "W"
neg = "B"
i=0
n=0
while i < 4:
    if state[i].startswith(neg):
        n += 8/(2**i)
    elif not state[i].startswith(pos):
         print("invalid entry 1")
    i+=1
LED = ('off','red','green','blue')
LED2= int(n % 4)
LED1= int((n - LED2)/4)
print(LED[LED1], LED[LED2])

And now this is the output I'm getting:
invalid entry 1
Traceback (most recent call last):
File "C:\Users\admin\Desktop\Prelim_Prog\Problem_06\Prob06.in.py", line 12, in <module>
if state[i].startswith(neg):
IndexError: list index out of range