#include <iostream>
using namespace std;
int main()
{
int a , b , c;
cin >> a>>b>>c;
if (c % a == 0 && c % b == 0)
{
cout <<"Both";
}
else if ( c % a == 0 && c % b != 0 )
cout <<"First";
else if ( c % a != 0 && c % b == 0 )
cout <<"Second";
else
cout <<"None of them";
return 0;
}
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