#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>

using namespace std;

double a[5];
double A, B, C, D, E;

int main()
{
    ios::sync_with_stdio(false);

    cin >> a[0] >> a[1] >> a[2] >> a[3] >> a[4];

    sort(begin(a),end(a));
    int min = 0;
    for (int i = 0;i<5;++i)
    {
        if (a[i] != 0) { min = a[i];break; }
    }

    int num = 0;

    while (true)
    {
        ++num;
        A = (a[0] * num) / (min);
        if (A != floor(A)) continue;
        B = (a[1] * num) / (min);
        if (B != floor(B)) continue;
        C = (a[2] * num) / (min);
        if (C != floor(C)) continue;
        D = (a[3] * num) / (min);
        if (D != floor(D)) continue;
        E = (a[4] * num) / (min);
        if (E != floor(E)) continue;

        int sum = A+B+C+D+E;
        cout << sum;
        break;

    }
}