#include <stdio.h>
int main() {
int a[5];
int m,n,f;
for (int d = 0; d < 10; d++) {
scanf("%d", &a[d]);
}
m = a[0];
n = a[1];
f = a[2];
for (int d = 3; d < 10; d++) {
if (a[d] > 0) {
f=n;n = m; m = a[d];
}
else if (m>=a[d]&& n < a[d]) {
f=n ;n = a[d];
}
else if(m>=a[d]&&n>=a[d]&&f<a[d]){f=a[d];}
}
int c = m + n+f;
printf("%d", c);
return 0;
}