#include

using

namespace

std

;

int

main

()

{

int

a[

10

];

for

(

int

i=

0

;i<

10

;i++) {

cin

>>a[i]; }

int

shou;

cin

>>shou; shou+=

30

;

int

sum=

0

;

for

(

int

i=

0

;i<

10

;i++) {

if

(shou>=a[i]) { sum++; } }

cout

<