The prison of your city has *n* prisoners. As the prison can't accommodate all of them, the city mayor has decided to transfer *c* of the prisoners to a prison located in another city.

For this reason, he made the *n* prisoners to stand in a line, with a number written on their chests. The number is the severity of the crime he/she has committed. The greater the number, the more severe his/her crime was.

Then, the mayor told you to choose the *c* prisoners, who will be transferred to the other prison. He also imposed two conditions. They are,
 -  The chosen *c* prisoners has to form a contiguous segment of prisoners. -  Any of the chosen prisoner's crime level should not be greater then *t*. Because, that will make the prisoner a severe criminal and the mayor doesn't want to take the risk of his running away during the transfer. 
Find the number of ways you can choose the *c* prisoners.
The first line of input will contain three space separated integers *n* (1 ≤ *n* ≤ 2·10<sup class="upper-index">5</sup>), *t* (0 ≤ *t* ≤ 10<sup class="upper-index">9</sup>) and *c* (1 ≤ *c* ≤ *n*). The next line will contain *n* space separated integers, the *i*<sup class="upper-index">*th*</sup> integer is the severity *i*<sup class="upper-index">*th*</sup> prisoner's crime. The value of crime severities will be non-negative and will not exceed 10<sup class="upper-index">9</sup>.
n, t, c = tuple(map(int, input().split()))
prisoners = input().replace(' ', '')

def get_windows_count(prisoners, c):
    start = 0
    end = start + c
    while end <= len(prisoners):
        start += 1
        end += 1
    return start

def get_valid_prisoners(prisoners, c):
    valid_prisoners = ''
    count = 0

    for prisoner in prisoners:
        if int(prisoner) <= t:
            valid_prisoners += prisoner
        else:
            valid_prisoners += ' '

    valid_prisoners = valid_prisoners.split(' ')
    if set(valid_prisoners) != {''}:
        for elem in valid_prisoners:
            if int(elem) >= c:
                count += get_windows_count(elem, c)
        return count
    else:
        return 0

valid_prisoners = get_valid_prisoners(prisoners, c)
print(valid_prisoners)

