#include <stdio.h>
int main()
{
	int high[100],h,z=0,i;
	for(i=0;i<10;i++)
	{
		scanf("%d",&high[i]);
	}
	scanf("%d",&h);
	h+=30;
	i--;
	while(i>0)
	{
		if(high[i]<h);
		z++;
	}
	printf("%d",z);
	return 0;
}