#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <queue>
#include <string>
#include <map>
#include <set>
#include <stack>
#include <tuple>
#include <deque>
#include <array>
#include <numeric>
#include <bitset>
#include <iomanip>
#include <cassert>
#include <chrono>
#include <random>
#include <limits>
#include <iterator>
#include <functional>
#include <sstream>
#include <fstream>
#include <complex>
#include <cstring>
#include <unordered_map>
using namespace std;

using ll = long long;
using P = pair<int, int>;
constexpr int INF = 1001001001;
constexpr int mod = 1000000007;
// constexpr int mod = 998244353;

template<class T>
inline bool chmax(T& x, T y){
    if(x < y){
        x = y;
        return true;
    }
    return false;
}
template<class T>
inline bool chmin(T& x, T y){
    if(x > y){
        x = y;
        return true;
    }
    return false;
}

bool is_prime(ll x){
    for(ll i = 2; i * i <= x; ++i){
        if(x % i == 0)  return false;
    }
    return true;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll X, Y;
    cin >> X >> Y;
    if(is_prime(X) || is_prime(Y)){
        cout << "First\n";
        return 0;
    }
    ll Z = X, W = Y;
    while(!is_prime(Z)) ++Z;
    while(!is_prime(W)) ++W;
    if(Z - X == 1 && W - Y == 1){
        cout << "Second\n";
        return 0;
    }
    ll dist = (Z - X) + (W - Y);
    if(dist % 2 == 0)   cout << "First\n";
    else    cout << "Second\n";

    return 0;
}