package main import ( "bufio" "bytes" "fmt" "log" "os" "strconv" ) // const abcd = "abcdefghijklmnopqrstuvwxyz" // const ABCD = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" var dr = [...]int{0, 1, 1, 1, 0, -1, -1, -1, 0} var dc = [...]int{1, 1, 0, -1, -1, -1, 0, 1, 0} func isPrime(n int) bool { if n == 0 { panic("n need 0") } if n == 1 { return false } if n == 2 { return true } for i := 2; i*i <= n; i++ { if n%i == 0 { return false } } return true } func main() { log.SetFlags(log.Lshortfile) nextReader = NewScanner() Y := nextInt() X := nextInt() log.Println(Y, X) if (isPrime(Y+1) || isPrime(X)) && (isPrime(X+1) || isPrime(Y)) { fmt.Println("Second") } else { fmt.Println("First") } for { n := nextInt() fmt.Println(isPrime(n)) } } func max(a ...int) int { r := a[0] for i := 0; i < len(a); i++ { if r < a[i] { r = a[i] } } return r } func min(a ...int) int { r := a[0] for i := 0; i < len(a); i++ { if r > a[i] { r = a[i] } } return r } func sum(a []int) (r int) { for i := range a { r += a[i] } return r } func minmax(a, b int) (int, int) { if a > b { return b, a } return a, b } func abs(a int) int { if a < 0 { return -a } return a } func printInts(out []int, str string) { var bb bytes.Buffer for i := range out { bb.WriteString(strconv.Itoa(out[i])) bb.WriteString(str) } fmt.Println(bb.String()) } var nextReader func() string func NewScanner() func() string { r := bufio.NewScanner(os.Stdin) r.Buffer(make([]byte, 1024), int(1e+11)) r.Split(bufio.ScanWords) return func() string { r.Scan() return r.Text() } } func nextString() string { return nextReader() } func nextInt64() int64 { v, _ := strconv.ParseInt(nextReader(), 10, 64) return v } func nextInt() int { v, _ := strconv.Atoi(nextReader()) return v } func nextInts(n int) []int { r := make([]int, n) for i := 0; i < n; i++ { r[i] = nextInt() } return r } func nextFloat64() float64 { f, _ := strconv.ParseFloat(nextReader(), 64) return f }