plate_game.cpp

#include <bits/stdc++.h>
using namespace std;

int main()
{
ios::sync_with_stdio(false);
cin.tie(0);
    int a,b,k;
    cin>>a>>b>>k;
    if((2*k)<=a&&(2*k)<=b)
    cout<<"First"<<endl;
    else
    cout<<"Second"<<endl;
    return 0;
}