How to display several array ?? (Using array and looping only)

Please help me i have a problem

Mr. Yon is opening Instagram. Then he realized that the number of following was more than the number of followers. He became curious, who was the person he followed but did not follow the Instagram account Mr. Yon. Make a program for Mr. Yon so that it is easier to find the name of the Instagram account he follows but don't followback.

Please help me