I am asked to figure out what this is for preparation for a quiz, I understand sort of how it works but am stuck I get that it only loops for a max of 3 times but could someone explain step by step in layman's terms exactly how and the steps that it does to get to it?

int i, sum = 0; for (i=4; i>2; i--) { sum = sum + i; while (sum < 10) { sum = sum * 2 - 3; System.out.println(sum); } System.out.println(i + " " + sum); }