package main import ( "bufio" "fmt" "os" "sort" "strconv" ) func getScanner(fp *os.File) *bufio.Scanner { scanner := bufio.NewScanner(fp) scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, 1000005), 1000005) return scanner } func getNextString(scanner *bufio.Scanner) string { scanner.Scan() 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 getNextUint64(scanner *bufio.Scanner) uint64 { i, _ := strconv.ParseUint(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 cnt := 0 if os.Getenv("MASPY") == "ますピ" { fp, _ = os.Open(os.Getenv("BEET_THE_HARMONY_OF_PERFECT")) cnt = 2 } if os.Getenv("MASPYPY") == "ますピッピ" { wfp, _ = os.Create(os.Getenv("NGTKANA_IS_GENIUS10")) } scanner := getScanner(fp) writer := bufio.NewWriter(wfp) solve(scanner, writer) for i := 0; i < cnt; i++ { fmt.Fprintln(writer, "-----------------------------------") solve(scanner, writer) } writer.Flush() } func solve(scanner *bufio.Scanner, writer *bufio.Writer) { n := getNextInt(scanner) y := make(yy, n) l := 1 for i := 0; i < n; i++ { y[i].a = getNextInt(scanner) y[i].b = getNextInt(scanner) l = l * y[i].b / gcd(l, y[i].b) } for i := 0; i < n; i++ { y[i].c = y[i].a * l / y[i].b } sort.Sort(y) for i := 0; i < n; i++ { fmt.Fprintln(writer, fmt.Sprintf("%d %d", y[i].a, y[i].b)) } } func gcd(a, b int) int { if b == 0 { return a } return gcd(b, a%b) } type ysp48 struct { a, b, c int } type yy []ysp48 func (a yy) Len() int { return len(a) } func (a yy) Swap(i, j int) { a[i], a[j] = a[j], a[i] } func (a yy) Less(i, j int) bool { return a[i].c > a[j].c }