I have a huge file (with around 200k inputs). The inputs are in the form:

A B C D
B E F
C A B D
D  

I am reading this file and storing it in a list as follows:

text = f.read().split('\n')

This splits the file whenever it sees a new line. Hence text is like follows:

[[A B C D] [B E F] [C A B D] [D]]

I have to now store these values in a dictionary where the key values are the first element from each list. i.e the keys will be A, B, C, D. I am finding it difficult to enter the values as the remaining elements of the list. i.e the dictionary should look like:

{A: B C D; B: E F; C: A B D; D: 0}

I have done the following:

    inlinkDict = {}
    for doc in text:
    adoc= doc.split(' ')
    docid = adoc[0]
    inlinkDict[docid] = inlinkDict.get(docid,0) +  {I do not understand what to put in here}

Please help as to how should i add the values to my dictionary. It should be 0 if there are no elements in the list except for the one which will be the key value. Like in example for 0.