#include<stdio.h>
int main()
{
    int a,b,c,d,e,f,g,h,i,j,height;
    int counter=0,num=0;
    scanf("%d %d %d %d %d %d %d %d %d %d %d",&a,&b,&c,&d,&e,&f,&g,&h,&i,&j);
	scanf("%d",&height);
    int array[10]={a,b,c,d,e,f,g,h,i,j};
    do
    {
        counter++;
        if(array[counter-1]<=height+30)
           num++;
    }while(counter<11);
    printf("%d",num);
    return 0;
}