private List<BigInteger> chunkWord(BigInteger sticked, final int chunkSize)
            throws Exception {
        List<BigInteger> list = new ArrayList<BigInteger>();

        int lenghtOfBigWord = sticked.bitLength();
        while(lenghtOfBigWord%chunkSize!=0){
            lenghtOfBigWord++;
        }

        int rounds = lenghtOfBigWord/chunkSize;
        for(int i=1;i<=rounds;i++){
            BigInteger value = valueOf(0);
            for(int ii=i*chunkSize-chunkSize;ii<i*chunkSize;ii++){
                boolean bit = sticked.testBit(ii);
                if(bit){
                    value = value.setBit(ii);
                }
            }
            value = value.shiftRight((i-1)*chunkSize);
            list.add(value);
        }
        return list;
    }