package main import ( "bufio" "fmt" "os" "strconv" ) func gcd(x, y int) int { if x < y { x, y = y, x } for y > 0 { x, y = y, x%y } return x } func main() { defer flush() A := readInt() B := readInt() t := gcd(A+B, A) println(t * gcd((A+B)/t, B)) } const ( ioBufferSize = 1 * 1024 * 1024 // 1 MB ) var stdinScanner = func() *bufio.Scanner { result := bufio.NewScanner(os.Stdin) result.Buffer(make([]byte, ioBufferSize), ioBufferSize) result.Split(bufio.ScanWords) return result }() func readString() string { stdinScanner.Scan() return stdinScanner.Text() } func readInt() int { result, err := strconv.Atoi(readString()) if err != nil { panic(err) } return result } var stdoutWriter = bufio.NewWriter(os.Stdout) func flush() { stdoutWriter.Flush() } func println(args ...interface{}) (int, error) { return fmt.Fprintln(stdoutWriter, args...) }