snieg

#include <iostream>
int nwd(int a, int b)
{
    int c;
    while(b != 0)
    {
        c=a % b;
        a = b;
        b = c;
    }
    return a;
}
int NWW(int a, int b)
{return (a*b)/nwd(a,b);}
int main()
{
long long a, b, c, d;
std::cin>>a>>b>>c>>d;
std::cout<<(d*100)/(NWW(a, NWW(b,c)));
return 0;
}