Comprehension Passage
Directions: Study the following information carefully and answer the questions given below.
An input-output is given in different steps. Some operations are done in each step. No operation is repeated in the next step.

As per the rules followed in the steps given above, find out in each of the following questions the appropriate step for the given input.

What would be the second letter of the third term of step I?
1
Successor of H
2
Predecessor of L
3
Successor of C
4
Predecessor of K
5
Predecessor of F