package main

import . "fmt"
import . "math/big"
import . "sort"
import r "math/rand"

func main() {
	var n int
	Scan(&n)
	a:=make([]int64,n,n)
	b:=make([]int64,n,n)
	for i:=range a {
		Scan(&a[i],&b[i])
	}
	p:=r.Perm(n)
	Slice(p, func(i,j int)bool{
		x,y:=p[i],p[j]
		xx:=NewRat(a[x],b[x])
		yy:=NewRat(a[y],b[y])
		return xx.Cmp(yy)>0
	})
	for _,v:=range p {
		Println(a[v],b[v])
	}
}