Counting Patterns

Problem Number: 
269
Type of Problem: 
Single Output Problem
Problem Category: 
Volume 2 (200-299)
Input: 
Critical Input
0
0
Critical Input: 
8 0 4 2
Random Input: 
Problem Description Link: 
https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=1…
Problem Id: 
269