#include <iostream>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <cmath>
using namespace std;
const int maxn=1e7;
int f[maxn],c[maxn];
const int wei[10]={0,1,2,3,5,10,20};

inline int read(){
    int x=0,w=1;
    char ch=getchar();
    for(;ch>'9'||ch<'0';ch=getchar()) if(ch=='-') w=-1;
    for(;ch>='0'&&ch<='9';ch=getchar()) x=x*10+ch-'0';
    return x*w;
}

int cnt,sum,ans;
int main(){
    freopen("fmcz.in","r",stdin);
    freopen("fmcz.out","w",stdout);
    for(int i=1;i<=6;i++){
        int k;
        k=read();
        for(int j=1;j<=k;j++)
            c[++cnt]=wei[i];
    }
    for(int i=1;i<=cnt;i++)
        sum+=c[i];
    f[0]=1;
    for(int i=1;i<=cnt;i++)
        for(int j=sum;j>=c[i];j--)
            f[j]+=f[j-c[i]];
    for(int i=1;i<=sum;i++)
        if(f[i]) ans++;
    cout<<ans<<'\n';
    return 0;
}