import std.algorithm;
import std.array;
import std.ascii;
import std.bigint;
import std.complex;
import std.container;
import std.conv;
import std.functional;
import std.math;
import std.range;
import std.stdio;
import std.string;
import std.typecons;

auto readInts() {
        return array(map!(to!int)(readln().strip().split()));
}
auto readInt() {
        return readInts()[0];
}
auto readLongs() {
        return array(map!(to!long)(readln().strip().split()));
}
auto readLong() {
        return readLongs()[0];
}

void readlnTo(T...)(ref T t) {
    auto s = readln().split();
    assert(s.length == t.length);
    foreach(ref ti; t) {
        ti = s[0].to!(typeof(ti));
        s = s[1..$];
    }
}

const real eps = 1e-10;

void main(){
    Tuple!(double, long)[] tp;
    foreach(i; iota(24)) {
        long p;
        double t;
        readlnTo(p, t);
        tp ~= tuple(t, p);
    }
    auto t1 = tp[0..8].sort();
    auto t2 = tp[8..16].sort();
    auto t3 = tp[16..24].sort();
    auto tr = t1[2..$].array ~ t2[2..$].array ~ t3[2..$].array;
    tr.sort();
    typeof(tp) finalists = t1[0..2].array ~ t2[0..2].array ~ t3[0..2].array ~ tr[0..2].array;
    foreach(fi; finalists) {
        writeln(fi[1], " ", fi[0]);
    }
}