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Lilah has a string, , of lowercase English letters that she repeated infinitely many times.
Given an integer, , find and print the number of letter a's in the first letters of Lilah's infinite string.
For example, if the string and , the substring we consider is , the first characters of her infinite string. There are occurrences of a in the substring.
The first line contains a single string, .
The second line contains an integer, .
Print a single integer denoting the number of letter a's in the first letters of the infinite string created by repeating infinitely many times.
Sample Input 0
Sample Output 0
The first letters of the infinite string are abaabaabaa. Because there are a's, we print on a new line.
Sample Input 1
Sample Output 1
Because all of the first letters of the infinite string are a, we print on a new line.