I have a list that looks like this: [['3'], ['9', '1'], ['5'], ['4'], ['2', '5', '8']] how can I get all the combinations thereof that looks like as follows: 3,9,5,4,2 3,1,5,4,2 3,9,5,4,5 3,1,5,4,5 etc. Thank You, Gerdus