int a[100001],h,i,k;

int main()

{

const int n=10;

for (i=1;i<=n;++i)

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

scanf("%d",&h);

h+=30;

for (i=1;i<=n;++i)

if (h>=a[i]) k++;

printf("%d\n",k);

return 0;

}