include <stdio.h>

int main() {

int a[11], n, count = 0; for (int i = 0; i < 10; i++) {

scanf("%d", &a[i]);

} scanf("%d", &n); n = n + 30; for (int i = 0; i < 10; i++) {

if (a[i] <= n) {
	count++;
}

} printf("%d", count); return 0; }