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.
Input
The first line of input will contain three space separated integers $*n* (1 ≤ *n* ≤ 2·10^{5})$, $*t* (0 ≤ *t* ≤ 10^{9})$ and $*c* (1 ≤ *c* ≤ *n*)$. The next line will contain $*n*$ space separated integers, the $*i*^{*th*}$ integer is the severity $*i*^{*th*}$ prisoner's crime. The value of crime severities will be non-negative and will not exceed $10^{9}$.
Output
Print a single integer — the number of ways you can choose the $*c*$ prisoners.
样例
4 3 3
2 3 1 1
2
1 1 1
2
0
11 4 2
2 2 0 7 3 2 2 4 9 1 4
6
题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。