A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and steps of rearrangement :
Input : huge elephant 39 dog 57 42 small 23
Step I : small huge elephant 39 dog 57 42 23
Step II : small 23 huge elephant 39 dog 57 42
Step III : small 23 huge 39 elephant dog 57 42
Step IV : small 23 huge 39 elephant 42 dog 57
Step IV is the last step of the given input.
As per the rules followed in the above steps, find out the appropriate step for the given input or vice versa in the following questions.
If step II of a given input be 'Zoo 5 dead 20 gate 10 at 12' what would be the last step of that input ?
1) Zoo 5 gate 10 dead 12 at 20
2) Zoo 5 gate 10 dead 12 20 at
3) Zoo 5 gate 10 dead 20 at 12
4) Zoo 5 gate dead 10 12 at 20
5) None of these

Explanation

2, Zoo 5 gate 10 dead 12 20 at