So just but combination you can tell that the next one will be, this is 1-2-3-4 the next one will be 2-3-4-5 then you will have 3-4-5-6, then 4, 5, 6, 1 and then 5-6-1-2, after that you come back to the origin the first one 6-1-2-3, .
ఆ బ్యూటేన్ యూనిట్లు, 1-2-3-4 తదుపరిది 2-3-4-5, 3-4-5-6 తరువాతది 4, 5, 6, 1 మరియు 5-6-1-2 తరువాతది 6-1-2-3.