import sequtils,algorithm,math,tables
import sets,intsets,queues,heapqueue,bitops,strutils
template times*(n:int,body) = (for _ in 0..<n: body)
template `max=`*(x,y) = x = max(x,y)
template `min=`*(x,y) = x = min(x,y)

proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': break
    result = 10 * result + k.ord - '0'.ord

const INF = int.high div 4
proc powerWhenTooBig(x,n:int,modulo:int = 0): int =
  proc mul(x,n,modulo:int):int =
    if n == 0: return 0
    if n == 1: return x
    result = mul(x,n div 2,modulo) mod modulo
    result = (result * 2) mod modulo
    result = (result + x * (n mod 2 == 1).int) mod modulo
    if n == 0: return 1
  if n == 1: return x
  let
    pow_2 = powerWhenTooBig(x,n div 2,modulo)
    odd = if n mod 2 == 1: x else: 1
  if modulo > 0:
    const maybig = int.high.float.sqrt.int div 2
    if pow_2 > maybig or odd > maybig:
      result = mul(pow_2,pow_2,modulo)
      result = mul(result,odd,modulo)
    else:
      result = (pow_2 * pow_2) mod modulo
      result = (result * odd) mod modulo
  else:
    return pow_2 * pow_2 * odd

proc millerRabinIsPrime(n:int):bool = # O(log n)
  proc ctz(n:int):int{.importC: "__builtin_ctzll", noDecl .} # 01<0000> -> 4
  proc power(x,n:int,modulo:int = 0): int =
    if n == 0: return 1
    if n == 1: return x
    let pow_2 = power(x,n div 2,modulo)
    result = pow_2 * pow_2 * (if n mod 2 == 1: x else: 1)
    if modulo > 0: result = result mod modulo
  if n <= 1 : return false
  if n div 2 == 0: return false
  if n == 2 or n == 3 or n == 5: return true
  let
    s = ctz(n - 1)
    d = (n - 1) div (1 shl s)
  var a_list = @[2, 7, 61]
  if n >= 4_759_123_141 and n < 341_550_071_728_321:
    a_list = @[2, 3, 5, 7, 11, 13, 17]
  if n in a_list : return true
  for a in a_list:
    if powerWhenTooBig(a,d,n) == 1 : continue
    let notPrime = toSeq(0..<s).allIt(powerWhenTooBig(a,d*(1 shl it),n) != n-1)
    if notPrime : return false
  return true

proc findNextPrime(n:int): int =
   var n = n
   while true:
    if millerRabinIsPrime(n): return n
    n += 1

proc playGame(x,y:int,swapped:bool = false) =
  let dx = x.findNextPrime() - x
  let dy = y.findNextPrime() - y
  if ((dx + dy) mod 2 == 0) xor swapped : echo "Second"
  else: echo "First"
  quit 0

let y = scan() #
let x = scan() # x より大きい素数を見つけるゲーム
if x == 2 or y == 2: quit "Second",0
let px = x.millerRabinIsPrime()
let py = y.millerRabinIsPrime()
if not px and not py: playGame(x,y)
if     px and not py: playGame(x+1,y,true)
if not px and     py: playGame(x,y+1,true)
if     px and     py: echo "Second"