Word Transformation

Problem Number: 
429
Type of Problem: 
Single Output Problem
Problem Category: 
Volume 4 (400-499)
Input: 
Random Input
0
0
Critical Input: 
Random Input: 
2 aa bb ac * aa ac aa ab bb * aa bb
Problem Description Link: 
https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=1…
Problem Id: 
429