#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- bool isprime(ll v) { for(ll i=2;i*i<=v;i++) if(v%i==0) return false; return (v!=1); } ll X,Y; map,int> memo; int win(ll a,ll b) { if(memo.count({a,b})==0) { if(isprime(a)||isprime(b)) { memo[{a,b}]=0; } else { memo[{a,b}]=(win(a+1,b)==0 || win(a,b+1)==0); } } return memo[{a,b}]; } void solve() { int i,j,k,l,r,x,y; string s; cin>>X>>Y; if(win(X,Y)==0) cout<<"First"<