#include <bits/stdc++.h>
using namespace std;
int main()
{
int a,b,c,d,l,fn,count;
while(cin>>a>>b>>c>>d>>l)
{
if(a==0 and b==0 and c==0 and d==0 and l==0) break;
count=0;
for(int i=0;i<=l;i++)
{
fn=a*i*i + b*i +c;
if(fn%d==0)
count++;
}
cout<<count<<endl;
}
return 0;
}
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