T = int(input())
for i in range(T):
	l, r = map(int, input().split())
	print(l, l * 2)

#include <bits/stdc++.h>

using namespace std;

int main() {
#ifdef _DEBUG
	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);
#endif
	
	int n;
	string s;
	cin >> n >> s;
	int cntl = 0, cntr = 0;
	for (int i = 0; i < n; ++i) {
		if (s[i] == s[0]) {
			++cntl;
		} else {
			break;
		}
	}
	for (int i = n - 1; i >= 0; --i) {
		if (s[i] == s[n - 1]) {
			++cntr;
		} else {
			break;
		}
	}
	if (s[0] == s[n - 1]) {
		cout << ((cntl + 1) * 1ll * (cntr + 1)) % 998244353 << endl;
	} else {
		cout << (cntl + cntr + 1) % 998244353;
	}
	
	return 0;
}

#include<bits/stdc++.h>
using namespace std;

int ang;

inline bool read() {
	if(!(cin >> ang))
		return false;
	return true;
}

inline void solve() {
	int g = __gcd(ang, 180);
	int k = ang / g;
	int n = 180 / g;
	
	if(k + 1 == n)
		k *= 2, n *= 2;
	cout << n << endl;
}

int main() {
#ifdef _DEBUG
	freopen("input.txt", "r", stdin);
	int tt = clock();
#endif
	cout << fixed << setprecision(15);
	
	int tc; cin >> tc;
	while(tc--) {
		assert(read());
		solve();
		
#ifdef _DEBUG
		cerr << "TIME = " << clock() - tt << endl;
		tt = clock();
#endif
	}
	return 0;
}

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); i++)

using namespace std;

const int N = 100 * 1000 + 13;
const long long INF64 = 1e18;

int n;
string s;
int a[N];
long long dp[N][5];

const string h = "hard";

int main() {
	scanf("%d", &n);
	static char buf[N];
	scanf("%s", buf);
	s = buf;
	forn(i, n)
		scanf("%d", &a[i]);
	
	forn(i, N) forn(j, 5) dp[i][j] = INF64;
	dp[0][0] = 0;
	forn(i, n) forn(j, 4){
		dp[i + 1][j + (s[i] == h[j])] = min(dp[i + 1][j + (s[i] == h[j])], dp[i][j]);
		dp[i + 1][j] = min(dp[i + 1][j], dp[i][j] + a[i]);
	}
	
	printf("%lld\n", *min_element(dp[n], dp[n] + 4));
	return 0;
}

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); i++)

using namespace std;

const int MOD = 998244353;
const int N = 10 * 1000 + 7;
const int M = 100 + 7;

int fact[N], rfact[N];

int add(int a, int b){
	a += b;
	if (a >= MOD) a -= MOD;
	if (a < 0) a += MOD;
	return a;
}

int mul(int a, int b){
	return (a * 1ll * b) % MOD;
}

int binpow(int a, int b){
	int res = 1;
	while (b){
		if (b & 1)
			res = mul(res, a);
		a = mul(a, a);
		b >>= 1;
	}
	return res;
}

int cnk(int n, int k){
	if (n == k) return 1;
	if (k < 0 || k > n) return 0;
	return mul(fact[n], mul(rfact[k], rfact[n - k]));
}

int g(int s, int p, int m){
	int res = 0;
	forn(i, p + 1)
		res = add(res, mul(i & 1 ? MOD - 1 : 1, mul(cnk(p, i), cnk(s + p - 1 - i * (m + 1), p - 1))));
	return res;
}

int inv(int x){
	return mul(rfact[x], fact[x - 1]);
}

int main() {
	fact[0] = 1;
	for (int i = 1; i < N; ++i) fact[i] = mul(fact[i - 1], i);
	rfact[N - 1] = binpow(fact[N - 1], MOD - 2);
	for (int i = N - 2; i >= 0; --i) rfact[i] = mul(rfact[i + 1], i + 1);
	
	int p, s, r;
	scanf("%d%d%d", &p, &s, &r);
	
	int Q = cnk(s - r + p - 1, p - 1);
	int P = 0;
	for (int t = r; t <= s; ++t) for (int q = 1; q <= p; ++q)
		P = add(P, mul(mul(cnk(p - 1, q - 1), inv(q)), g(s - q * t, p - q, t - 1)));
	
	printf("%d\n", mul(P, binpow(Q, MOD - 2)));
	return 0;
}

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); i++)

using namespace std;

const int N = 200 * 1000 + 13;
const int MOD = 998244353;

int n;
int p[N];
bool used[N];
int gt[N];

int add(int a, int b){
	a += b;
	if (a >= MOD)
		a -= MOD;
	return a;
}

int mul(int a, int b){
	return (a * 1ll * b) % MOD;
}

int binpow(int a, int b){
	int res = 1;
	while (b){
		if (b & 1)
			res = mul(res, a);
		a = mul(a, a);
		b >>= 1;
	}
	return res;
}

int f[N];

void upd(int x){
	for (int i = x; i < N; i |= i + 1)
		++f[i];
}

int get(int x){
	int sum = 0;
	for (int i = x; i >= 0; i = (i & (i + 1)) - 1)
		sum += f[i];
	return sum;
}

int main() {
	scanf("%d", &n);
	forn(i, n){
		scanf("%d", &p[i]);
		if (p[i] != -1)
			used[p[i]] = true;
	}
	
	int cur = 0;
	for (int i = n; i >= 1; --i){
		gt[i] = cur;
		cur += !used[i];
	}
	
	// case 1
	int ans = mul(mul(cur, cur - 1), binpow(4, MOD - 2));
	
	int inv = binpow(cur, MOD - 2);
	
	// case 2
	int lft = 0;
	forn(i, n){
		if (p[i] == -1)
			++lft;
		else
			ans = add(ans, mul(lft, mul(gt[p[i]], inv)));
	}
	
	// case 3
	int rgh = 0;
	for (int i = n - 1; i >= 0; --i){
		if (p[i] == -1)
			++rgh;
		else
			ans = add(ans, mul(rgh, mul(cur - gt[p[i]], inv)));
	}
	
	// case 4	
	int tmp = 0;
	forn(i, n) if (p[i] != -1){
		ans = add(ans, tmp - get(p[i]));
		upd(p[i]);
		++tmp;
	}
	
	printf("%d\n", ans);
	return 0;
}

#include<bits/stdc++.h>

using namespace std;

#define fore(i, l, r) for(int i = int(l); i < int(r); i++)
#define forn(i, n) fore(i, 0, n)

#define sz(a) int((a).size())
#define all(a) (a).begin(), (a).end()

#define mp make_pair
#define pb push_back

#define x first
#define y second

typedef long long li;
typedef long double ld;
typedef pair<int, int> pt;

template<class A, class B> ostream& operator <<(ostream& out, const pair<A, B> &p) {
	return out << "(" << p.x << ", " << p.y << ")";
}

template<class A> ostream& operator <<(ostream& out, const vector<A> &v) {
	out << "[";
	forn(i, sz(v)) {
		if(i) out << ", ";
		out << v[i];
	}
	return out << "]";
}

const int INF = int(1e9);
const li INF64 = li(1e18);
const ld EPS = 1e-9;

const int N = 2500 * 1000 + 555;
const int LOGN = 22;

const int MOD = 998244353;
int g = 3;

inline int mul(int a, int b){
	return int(a * 1ll * b % MOD);
}

inline int norm(int a) {
	if(a >= MOD)
		a -= MOD;
	if(a < 0)
		a += MOD;
	return a;
}

inline int binPow(int a, int k) {
	int ans = 1;
	while(k > 0) {
		if(k & 1)
			ans = mul(ans, a);
		a = mul(a, a);
		k >>= 1;
	}
	return ans;
}

inline int inv(int a) {
	return binPow(a, MOD - 2);
}

vector<int> w[LOGN];
vector<int> rv[LOGN];

void precalc() {
    int wb = binPow(g, (MOD - 1) / (1 << LOGN));

    for(int st = 0; st < LOGN - 1; st++) {
        w[st].assign(1 << st, 1);

        int bw = binPow(wb, 1 << (LOGN - st - 1));
        int cw = 1;

        for (int k = 0; k < (1 << st); k++) {
            w[st][k] = cw;
            cw = mul(cw, bw);
        }
    }
    for(int st = 0; st < LOGN; st++) {
        rv[st].assign(1 << st, 0);

        if(st == 0) {
            rv[st][0] = 0;
            continue;
        }
        int h = (1 << (st - 1));
        for(int k = 0; k < (1 << st); k++)
            rv[st][k] = (rv[st - 1][k & (h - 1)] << 1) | (k >= h);
    }
}

inline void fft(int a[N], int n, bool inverse) {
    int ln = 0;
    while((1 << ln) < n)
        ln++;

    assert((1 << ln) < N);
    n = (1 << ln);

    forn(i, n) {
        int ni = rv[ln][i];
        if(i < ni)
            swap(a[i], a[ni]);
    }

    for(int st = 0; (1 << st) < n; st++) {
        int len = (1 << st);
        for(int k = 0; k < n; k += (len << 1)) {
            for(int pos = k; pos < k + len; pos++) {
                int l = a[pos];
                int r = mul(a[pos + len], w[st][pos - k]);

                a[pos] = norm(l + r);
                a[pos + len] = norm(l - r);
            }
        }
    }

    if(inverse) {
        int in = inv(n);
        forn(i, n)
            a[i] = mul(a[i], in);
        reverse(a + 1, a + n);
    }
}

int aa[N], bb[N], cc[N];

inline vector<int> multiply(const vector<int> a, const vector<int> b) {
	int ln = 1;
	while(ln < (sz(a) + sz(b)))
		ln <<= 1;
		
	forn(i, ln)
		aa[i] = (i < sz(a) ? a[i] : 0);
		
	forn(i, ln)
		bb[i] = (i < sz(b) ? b[i] : 0);
		
	fft(aa, ln, false);
	fft(bb, ln, false);
	
	forn(i, ln)
		cc[i] = mul(aa[i], bb[i]);
		
	fft(cc, ln, true);
	
	vector<int> c(ln, 0);
	forn(i, sz(c))
		c[i] = cc[i];
	
	while(sz(c) > 1 && c.back() == 0)
		c.pop_back();
	return c;
}

int n, k, a[11];

inline bool read() {
	if(!(cin >> n >> k))
		return false;
	forn(i, k)
		cin >> a[i];
	return true;
}

inline void solve() {
	sort(a, a + k);
	
	vector<int> ans(1, 1);
	vector<int> f(10, 0);
	forn(i, k)
		f[a[i]] = 1;

	precalc();
		
	int pw = n / 2;
	while(pw > 0) {
		if(pw & 1)
			ans = multiply(ans, f);
		f = multiply(f, f);
		pw >>= 1;
	}
	
	int res = 0;
	forn(i, sz(ans))
		res = norm(res + mul(ans[i], ans[i]));
	cout << res << endl;
}

int main() {
#ifdef _DEBUG
	freopen("input.txt", "r", stdin);
	int tt = clock();
#endif
	cout << fixed << setprecision(15);
	
	if(read()) {
		solve();
		
#ifdef _DEBUG
		cerr << "TIME = " << clock() - tt << endl;
		tt = clock();
#endif
	}
	return 0;
}

#include<bits/stdc++.h>

using namespace std;

const int LOGN = 21;
const int N = (1 << LOGN);
const int MOD = 998244353;
const int g = 3;

#define forn(i, n) for(int i = 0; i < int(n); i++)

inline int mul(int a, int b)
{
	return (a * 1ll * b) % MOD;
}

inline int norm(int a) 
{
	while(a >= MOD)
		a -= MOD;
	while(a < 0)
		a += MOD;
	return a;
}

inline int binPow(int a, int k) 
{
	int ans = 1;
	while(k > 0) 
	{
		if(k & 1)
			ans = mul(ans, a);
		a = mul(a, a);
		k >>= 1;
	}
	return ans;
}

inline int inv(int a) 
{
	return binPow(a, MOD - 2);
}

vector<int> w[LOGN];
vector<int> iw[LOGN];
vector<int> rv[LOGN];

void precalc() 
{
	int wb = binPow(g, (MOD - 1) / (1 << LOGN));
	
	for(int st = 0; st < LOGN; st++) 
	{
		w[st].assign(1 << st, 1);
		iw[st].assign(1 << st, 1);
		
		int bw = binPow(wb, 1 << (LOGN - st - 1));
		int ibw = inv(bw);
		
		int cw = 1;
		int icw = 1;
		
		for(int k = 0; k < (1 << st); k++) 
		{
			w[st][k] = cw;
			iw[st][k] = icw;
			
			cw = mul(cw, bw);
			icw = mul(icw, ibw);
		}
		
		rv[st].assign(1 << st, 0);
		
		if(st == 0) 
		{
			rv[st][0] = 0;
			continue;
		}
		int h = (1 << (st - 1));
		for(int k = 0; k < (1 << st); k++)
			rv[st][k] = (rv[st - 1][k & (h - 1)] << 1) | (k >= h);
	}
}

inline void fft(int a[N], int n, int ln, bool inverse) 
{	
	for(int i = 0; i < n; i++) 
	{
		int ni = rv[ln][i];
		if(i < ni)
			swap(a[i], a[ni]);
	}
	
	for(int st = 0; (1 << st) < n; st++) 
	{
		int len = (1 << st);
		for(int k = 0; k < n; k += (len << 1)) 
		{
			for(int pos = k; pos < k + len; pos++) 
			{
				int l = a[pos];
				int r = mul(a[pos + len], (inverse ? iw[st][pos - k] : w[st][pos - k]));
				
				a[pos] = norm(l + r);
				a[pos + len] = norm(l - r);
			}
		}
	}
	
	if(inverse) 
	{
		int in = inv(n);
		for(int i = 0; i < n; i++)
			a[i] = mul(a[i], in);
	}
}

int aa[N], bb[N], cc[N];

inline void multiply(int a[N], int sza, int b[N], int szb, int c[N], int &szc) 
{
	int n = 1, ln = 0;
	while(n < (sza + szb))
		n <<= 1, ln++;
	for(int i = 0; i < n; i++)
		aa[i] = (i < sza ? a[i] : 0);
	for(int i = 0; i < n; i++)
		bb[i] = (i < szb ? b[i] : 0);
		
	fft(aa, n, ln, false);
	fft(bb, n, ln, false);
	
	for(int i = 0; i < n; i++)
		cc[i] = mul(aa[i], bb[i]);
		
	fft(cc, n, ln, true);
	
	szc = n;
	for(int i = 0; i < n; i++)
		c[i] = cc[i];
}

vector<int> T[N];

int a[N];
int b[N];
int c[N];

#define sz(a) (int(a.size()))

int main()
{
	precalc();
	int n, k;
	scanf("%d %d", &n, &k);
	for(int i = 0; i < k; i++)
	{
	    int x;
	    scanf("%d", &x);
	    a[x] = 1;
	}
	int nn = 1, ln = 0;
	int nw = (n * 5) + 1;
	while(nn < nw)
	{
		nn *= 2;
		ln++;
	}
	fft(a, nn, ln, false);
	forn(i, nn)
		a[i] = binPow(a[i], n / 2);
	fft(a, nn, ln, true);
	int ans = 0;
	forn(i, nn)
		ans = norm(ans + binPow(a[i], 2));
	printf("%d\n", ans);
	return 0;	
}