[R] list of lists to matrix

[eliza botto]

dear R family,
[a text file has been attached for better understanding]
i have a list of 16 and each of of that is further subdivided into variable number of lists. So, i have a kind of list into lists phenomenon.
[[1]]$'1'
1       2      3   4       5      6
7      8       9

[[1]]$'2'
1       2      3   4       5      6
7      8       9
i want to convert both these sublists into one column and then cbind it in the following way
col1     col2
1           1
2           2
3           3..
9         9

i want to the same operations on all the 16 lists. 
thanks in advance,

elisa 		 	   		  
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