#!/usr/bin/env python3

def count_in_array(x, A):
    c = 0
    for elem in A:
        if elem == x:
            c = c + 1
    return c

def main():
    print(count_in_array(5, [7, 5, 16, 3, 10, 5, 8, 1, 29, 13, 28]))

if __name__ == "__main__":
    main()