from math import log, floor

tobin = lambda v: v>0 and tobin(v>>1).lstrip('0')+str(v&1) or '0'

def calcremainder(v,coeff):
    n = floor(log(coeff,2))
    v = v << n
    r = v
    while (r>>n) > 0:
        m = floor(log(r,2))
        p = coeff<<(m-n)
        r = r ^ p
    return v,r

def create(b,coeff=0b1011):
    v,r = calcremainder(b,coeff)
    return v+r

def check(b,coeff=0b1011):
    _,r = calcremainder(b,coeff)
    return r == 0

a = int("11010011101100",2)

print( "V:" + tobin( a ) )
c = create(a)+1
print("CRC-Data: " + tobin( c ) )

print("Correct?: " + ( check(c) and "Yes" or "No"))