https://www.luogu.com.cn/record/list?pid=P1046&user=577683

#include<bits/stdc++.h>
using namespace std;

//inline int read(){
//	short f=1;int x=0;char c=getchar();
//	while(c<'0'||c>'9'){if(c=='-')f=-1;c=getchar();}
//	while(c>='0'&&c<='9'){x=(x<<3)+(x<<1)+(c^48);c=getchar();}
//	return x*f;
//}

int n=10;
int apple[15];
int taotao;
int ans;

int main(){
	for(int i=1;i<=n;i++){
//		apple[i]=read();
		scanf("%d",apple+i);
	}
//	taotao=read();
	scanf("%d",&taotao);
	taotao+=30;
	for(int i=1;i<=n;i++){
		if(taotao>=apple[i]) ans++;
	}
	return printf("%d",ans);
}
//最后一遍的代码