import std.stdio, std.string, std.conv;
import std.range, std.algorithm, std.array, std.typecons, std.container;
import std.math, std.numeric, core.bitop;

alias Frac = Tuple!(int, "num", int, "den");

void main() {
    int n;
    scan(n);

    auto f = new Frac[](n);
    foreach (i ; 0 .. n) {
        int a, b;
        scan(a, b);
        f[i] = Frac(a, b);
    }

    f.sort!"a.num * b.den > b.num * a.den"();

    foreach (i ; 0 .. n) {
        writefln("%d %d", f[i].num, f[i].den);
    }
}




















void scan(T...)(ref T args) {
    import std.stdio : readln;
    import std.algorithm : splitter;
    import std.conv : to;
    import std.range.primitives;

    auto line = readln().splitter();
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront();
    }
    assert(line.empty);
}


void fillAll(R, T)(ref R arr, T value) {
    static if (is(typeof(arr[] = value))) {
        arr[] = value;
    }
    else {
        foreach (ref e; arr) {
            fillAll(e, value);
        }
    }
}