C++ :

#include <cstdio>
int main(){
    int cnt[6], w[6] = {1, 2, 3, 5, 10, 20};
    for(int i = 0; i < 6; i++) if(scanf("%d", &cnt[i]) != 1) cnt[i] = 0;
    static char f[1005];
    f[0] = 1;
    for(int i = 0; i < 6; i++)
        for(int c = 0; c < cnt[i]; c++)
            for(int s = 1000; s >= w[i]; s--)
                if(f[s - w[i]]) f[s] = 1;
    int ans = 0;
    for(int s = 1; s <= 1000; s++) if(f[s]) ans++;
    printf("%d\n", ans);
    return 0;
}