#includeusing namespace std;int a[1005];int f[1005];int main(){ int n,m; while(scanf("%d",&n)&&n!=0) { memset(f,0,sizeof(f)); for(int i=1; i<=n; i++) scanf("%d",&a[i]); scanf("%d",&m); sort(a+1,a+1+n); for(int i=1; i<=n-1; i++) for(int j=m-5; j>=a[i]; j--) { f[j]=max(f[j],f[j-a[i]]+a[i]); } if(m<5) printf("%d\n",m); else printf("%d\n",m-f[m-5]-a[n]);// cout< <