def repeatedString(s, n):
    # Write your code here
    number_of_times_to_multiply = n // len(s)

    a_count = sum([1 if i == 'a' else 0 for i in s])

    res = a_count * number_of_times_to_multiply

    diff = n - (len(s) * number_of_times_to_multiply)

    new_s = s[:diff]

    a_count = sum([1 if i == 'a' else 0 for i in new_s])
    
    res = res + a_count
    
    return res