Write a program to solve the following search problem: You are given two words of equal length and a dictionary of legal English words. At each step, you can change any single letter in the word to any other letter, provided that the result is a word in the dictionary; you cannot add or remove letters. Your program should print the shortest list of words that connects the two given words in this way $($if there are multiple such paths, any one is sufficient$).$Write a program to solve the following search problem: You are given two words of equal length and a dictionary of legal English words. At each step, you can change any single letter in the word to any other letter, provided that the result is a word in the dictionary; you cannot add or remove letters.