fn run(sc: &mut scanner::Scanner, out: &mut std::io::BufWriter) { //test(); let t: u32 = sc.next(); for _ in 0..t { let n = sc.next::(); let a = sc.next_vec::(n); if fast(a) { writeln!(out, "First").ok(); } else { writeln!(out, "Second").ok(); } } } // 実験しても何も見えん // mod 5? // 0, 1, 4: lose // 2, 3: win // // fn test() { let mut map = Map::new(); println!("{:?}", naive(vec![1], &mut map)); println!("{:?}", naive(vec![2], &mut map)); println!("{:?}", naive(vec![4], &mut map)); println!("{:?}", naive(vec![2, 3, 7], &mut map)); let mut set = Set::new(); for _ in 0..10000 { let n = rand() % 3 + 1; let mut a = (0..n).map(|_| rand() % 10 + 2).collect::>(); a.sort(); if set.insert(a.clone()) { let res = naive(a.clone(), &mut map); assert_eq!(res, fast(a.clone()), "{:?}", a); let cnt = a.iter().filter(|a| **a % 5 == 2 || **a % 5 == 3).count(); if cnt % 2 == 1 { assert!(res, "{:?}", a); } else if res { println!("{:?}: {} {}", a, res, cnt); } } } for i in 1..40 { println!("{}: {}", i, naive(vec![i], &mut map)); } } fn fast(a: Vec) -> bool { let c = a.iter().filter(|a| **a % 5 == 3).count(); let d = a.iter().filter(|a| **a % 5 == 2).count(); let e = a.iter().filter(|a| **a == 3).count(); (c + d) % 2 == 1 || e % 2 == 1 } fn naive(mut a: Vec, map: &mut Map, bool>) -> bool { a.sort(); a.retain(|a| *a > 1); if a.is_empty() { return false; } let a = a; let res = (0..a.len()).any(|i| { let mut a = a.clone(); let v = a.remove(i); let a = a; (1..v).all(|j| { let mut b = a.clone(); let mut c = a.clone(); b.push(j); c.push(v - j); !naive(b, map) || !naive(c, map) }) }); map.insert(a, res); res } // ---------- begin scannner ---------- #[allow(dead_code)] mod scanner { use std::str::FromStr; pub struct Scanner<'a> { it: std::str::SplitWhitespace<'a>, } impl<'a> Scanner<'a> { pub fn new(s: &'a String) -> Scanner<'a> { Scanner { it: s.split_whitespace(), } } pub fn next(&mut self) -> T { self.it.next().unwrap().parse::().ok().unwrap() } pub fn next_bytes(&mut self) -> Vec { self.it.next().unwrap().bytes().collect() } pub fn next_chars(&mut self) -> Vec { self.it.next().unwrap().chars().collect() } pub fn next_vec(&mut self, len: usize) -> Vec { (0..len).map(|_| self.next()).collect() } } } // ---------- end scannner ---------- use std::collections::*; use std::io::Write; type Map = BTreeMap; type Set = BTreeSet; type Deque = VecDeque; fn main() { use std::io::Read; let mut s = String::new(); std::io::stdin().read_to_string(&mut s).unwrap(); let mut sc = scanner::Scanner::new(&s); let out = std::io::stdout(); let mut out = std::io::BufWriter::new(out.lock()); run(&mut sc, &mut out); } fn rand_memory() -> usize { Box::into_raw(Box::new("I hope this is a random number")) as usize } fn rand() -> usize { static mut X: usize = 0; unsafe { if X == 0 { X = rand_memory(); } X ^= X << 13; X ^= X >> 17; X ^= X << 5; X } } fn shuffle(a: &mut [T]) { for i in 1..a.len() { let p = rand() % (i + 1); a.swap(i, p); } }