文件目录

#include <iostream>
using namespace std;
int main()
{
    int x, y, z, n, m, c = 0;
    cin >> x >> y >> z >> n >> m;
    for (int i = 0; i <= m; i++)
    {
        for (int j = 0; j <= m; j++)
        {
            int k = m - i - j;
            if (k < 0)
                continue;
            if (k % z == 0 && i * x + j * y + k / z == n)
                c++;
        }
    }
    cout << c;
    return 0;
}