Fire Lord Ozai, who is also known for being a Joker (tell me if you get this reference!), finds the number ~41~ extremely funny. He has lined up ~N~ of his citizens with the intention of recruiting some of them for his army. When looking at a certain soldier, Ozai will consider him ugly if he and his adjacent soldiers in line are all less than or equal to a height of ~41~. Ozai needs to figure out just how ugly his potential recruits are. Help Ozai count the number of ugly soldiers in line.

Input Specification

The first line will contain the number of soldiers, ~N~ ~(1 \le N \le 20)~.

The next ~N~ lines will contain the heights of all the soldiers in the order they are standing in line.

Output Specification

Print the number of ugly soldiers in line.

Sample Input

3
30
25
50

Sample Output

1

Explanation for Sample Output

Only the first soldier is ugly.