package main import ( "bufio" "fmt" "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) { x := getNextInt(scanner) mx := 2000001 era := make([]int, mx) for i := 1; i < mx; i++ { for j := i; j < mx; j += i { era[j]++ } } mn := mx for i := 1; i < x; i++ { v := max(f(i, era[i])-f(x-i, era[x-i]), f(x-i, era[x-i])-f(i, era[i])) if mn > v { mn = v } } for i := 1; i < x; i++ { v := max(f(i, era[i])-f(x-i, era[x-i]), f(x-i, era[x-i])-f(i, era[i])) if mn == v { fmt.Fprintln(writer, fmt.Sprintf("%d %d", i, x-i)) } } } func max(a, b int) int { if a < b { return b } return a } func f(n, d int) int { return n - d }