# Given Seed, keyfragment and cipher text, how to get actual text using LFSR? [duplicate]

$$\text{seed = 1100010001101001}$$

$$\text{key fragment = 110001010000101011001011111101100}$$

$$\text{cipher text = 0xa50b839547f7fe7cf882}$$

What is the actual text and how to evaluate it? I would like to know the exact procedure to do it.