#include <iostream>
#include <string>
using namespace std;
int main() {
    string s;
    cin >> s;
    if((s[0] == s[s.size() - 1]) ^ (s.size() % 2)) {
        cout << "First" << endl;
    }
    else {
        cout << "Second" << endl;
    }
    return 0;
}