#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <charconv>
#include <cstring>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <limits>
#include <map>
#include <optional>
#include <random>
#include <set>
#include <stdexcept>
#include <string>
#include <string_view>
#include <type_traits>
#include <unordered_map>
#include <utility>
#include <variant>
#include <vector>
#include <queue>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> ii;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef vector<ii> vii;

#define x first
#define y second
#define pb push_back
#define eb emplace_back
#define rep(i,a,b) for(auto i=(a); i<(b); ++i)
#define REP(i,n) rep(i,0,n)
#define all(v) (v).begin(), (v).end()
#define rs resize
#define DBG(x) cerr << __LINE__ << ": " << #x << " = " << (x) << endl

const ld PI = acos(-1.0);
template<class T> using min_queue =
priority_queue<T, vector<T>, greater<T>>;
template<class T> int sz(const T &x) {
    return (int) x.size(); // copy the ampersand(&)!
}

// START OF ACTUAL PROGRAM, START READING HERE

ll get_digit(char c) {
	switch (c) {
	case 'a':
	case 'b':
	case 'c': return 2;
	case 'd':
	case 'e':
	case 'f': return 3;
	case 'g':
	case 'h':
	case 'i': return 4;
	case 'j':
	case 'k':
	case 'l': return 5;
	case 'm':
	case 'n':
	case 'o': return 6;
	case 'p':
	case 'q':
	case 'r':
	case 's': return 7;
	case 't':
	case 'u':
	case 'v': return 8;
	case 'w':
	case 'x':
	case 'y':
	case 'z': return 9;
	}
	return -1;
}

ll get_int(string s) {
	ll r = 0;
	for (char c : s) {	
		r *= 10;
		r += get_digit(c);
	}
	return r;
}

void run() {
	ll n, m;
	cin >> n >> m;
	unordered_map<ll, vector<string>> M;
	for (ll i = 0; i < n; i++) {
		string s;
		cin >> s;
		M[get_int(s)].pb(s);
	}
	for (ll i = 0; i < m; i++) {
		ll j;
		cin >> j;
		vector<string> v = M[j];
		cout << v.size() << " ";
		for (string s : v) {
			cout << s << " ";
		}
		cout << endl;
	}
}

signed main() {
    // DON'T MIX "scanf" and "cin"!
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout << fixed << setprecision(20);
    run();
    return 0;
}