#include<stdio.h>

int main() {
    int n, x, t, a;
    int ans = 0, count = 0;
    scanf("%d%d%d", &n, &x, &t);
    while (n--) {
        scanf("%d", &a);
        int m = a % x;
        if (m <= t || m >= x - t) {
            count++;
        } else {
            ans = count > ans ? count : ans;
            count = 0;
        }
    }
    ans = count > ans ? count : ans;
    printf("%d\n", ans);
    return 0;
}