#include<iostream>
#include<vector>
#include<algorithm>
#include<functional>
#include<queue>
#include<stack>
#include<set>
#include<climits>
#include<cstdlib>
#include<cmath>
#include<string>

using namespace std;

#define INF 1 << 29
#define LL long long int

LL const MOD = 1000000007;

bool sosu(LL n){
    if(n < 2){
        return false;
    }else if(n == 2){
        return true;
    }else if(n%2 == 0){
        return false;
    }else{
        for(LL i = 3; i <= n/i; i += 2){
            if(n%i == 0){
                return false;
            }
        }
    }
    return true;
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    LL a,b;
    cin >> a >> b;

    LL enda = -1;
    LL endb = -1;

    for(LL i = a+1; enda < 0; i += 2){
        if(i%2 == 0){
            i++;
        }
        if(sosu(i)){
            enda = i;
        }
    }
    
    for(LL i = b+1; endb < 0; i += 2){
        if(i%2 == 0){
            i++;
        }
        if(sosu(i)){
            endb = i;
        }
    }

    if((abs(enda - a) + abs(endb - b))%2 == 0){
        cout << "Second" << endl;
    }else{
        cout << "First" << endl;
    }

    return 0;
}