package main import ( "bufio" "fmt" "math" "os" "strconv" ) func configure(scanner *bufio.Scanner) { scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, 1000005), 1000005) } func getNextString(scanner *bufio.Scanner) string { scanned := scanner.Scan() if !scanned { panic("scan failed") } return scanner.Text() } func getNextInt(scanner *bufio.Scanner) int { i, _ := strconv.Atoi(getNextString(scanner)) return i } func getNextInt64(scanner *bufio.Scanner) int64 { i, _ := strconv.ParseInt(getNextString(scanner), 10, 64) return i } func getNextFloat64(scanner *bufio.Scanner) float64 { i, _ := strconv.ParseFloat(getNextString(scanner), 64) return i } func main() { fp := os.Stdin wfp := os.Stdout extra := 0 if os.Getenv("I") == "IronMan" { fp, _ = os.Open(os.Getenv("END_GAME")) extra = 100 } scanner := bufio.NewScanner(fp) configure(scanner) writer := bufio.NewWriter(wfp) defer func() { r := recover() if r != nil { fmt.Fprintln(writer, r) } writer.Flush() }() solve(scanner, writer) for i := 0; i < extra; i++ { fmt.Fprintln(writer, "-----------------------------------") solve(scanner, writer) } } func solve(scanner *bufio.Scanner, writer *bufio.Writer) { d1 := math.Sqrt(getNextFloat64(scanner)) d2 := math.Sqrt(getNextFloat64(scanner)) switch compare(d1, d2) { case -1: switch compare(d1, math.Sqrt(2)*d2/2) { case -1: fmt.Fprintln(writer, 0) case 0: fmt.Fprintln(writer, 4) case 1: fmt.Fprintln(writer, 8) } case 0: fmt.Fprintln(writer, 4) case 1: fmt.Fprintln(writer, 0) } } func compare(a, b float64) int { eps := 1e-9 if a > b+eps { return 1 } if b > a+eps { return -1 } return 0 }