#include <stdio.h> int main() { int high[10]; int get; int x = 0;

for (int i = 0; i < 10; i++)
{
	scanf_s("%d", &high[i]);
}
scanf_s("%d", &get);
get = get + 30;
for (int i = 0; i < 10; i++)
{
	if (get >= high[i])
	{
		x++;
	}
}
printf("%d", x);


return 0;

}