Find Small A

Time Limit: 2000/1000 MS (Java/Others)

Memory Limit: 65536/65536 K (Java/Others)

Description

As is known to all,the ASCII of character 'a' is 97. Now,find out how many character 'a' in a group of given numbers. Please note that the numbers here are given by 32 bits’ integers in the computer.That means,1digit represents 4 characters(one character is represented by 8 bits’ binary digits).

Input

The input contains a set of test data.The first number is one positive integer N (1≤N≤100),and then N positive integersai (1≤ $a_i$≤2^32 - 1) follow

Output

Output one line,including an integer representing the number of 'a' in the group of given numbers.

Sample Input

3 97 24929 100

Sample Output

3

Hint

wange2014

Source

2016ACM/ICPC亚洲区大连站-重现赛(感谢大连海事大学)

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