fun main(args: Array<String>) {
    val T = readLine()!!.toInt()
    for (t in 1..T) {
        val (n, x) = readLine()!!.split(' ').map { it.toLong() }
        println(x * 2)
    }
}

#include <bits/stdc++.h>

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

using namespace std;


int main() {
	int q;
	cin >> q;
	forn(_, q){
		int n, m;
		cin >> n >> m;
		vector<string> s(n);
		forn(i, n)
			cin >> s[i];
		vector<int> cntn(n), cntm(m);
		forn(i, n) forn(j, m){
			cntn[i] += (s[i][j] == '.');
			cntm[j] += (s[i][j] == '.');
		}
		int ans = n + m;
		forn(i, n) forn(j, m){
			ans = min(ans, cntn[i] + cntm[j] - (s[i][j] == '.'));
		}
		cout << ans << "\n";
	}
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

int q;
string s, t, p;
int cnt[30];

int main() {
	cin >> q;
	for(int iq = 0; iq < q; ++iq){
		cin >> s >> t >> p;
		memset(cnt, 0, sizeof cnt);
		for(auto x : p)
			++cnt[x - 'a'];

		bool ok = true;
		int is = 0, it = 0;
		while(is < s.size()){
			if(it == t.size()){
				ok = false;
				break;
			}
			
			if(s[is] == t[it]){
				++is, ++it;
				continue;
			}
			
			--cnt[t[it] - 'a'];
			++it;
		}
        while(it < t.size()){
            --cnt[t[it] - 'a'];
			++it;
        }
        
		if(*min_element(cnt, cnt + 30) < 0)
			ok = false;

		if(ok) cout << "YES\n";
		else cout << "NO\n";
	}		
	return 0;
}                             	



}                             	

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

int n, k;

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

void solve() {
	bool win = true;
	if(k % 3 == 0) {
		int np = n % (k + 1);
		if(np % 3 == 0 && np != k)
			win = false;
	} else {
		int np = n % 3;
		if(np == 0)
			win = false;
	}
	
	puts(win ? "Alice" : "Bob");
}

int main(){
	int T; cin >> T;
	while(T--) {
		read();
		solve();
	}
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

#define mp make_pair

const int N = 10009;
const int INF = 1000000009;
 
int n;
vector <pair<int, int> > vs[N], hs[N];
int f[N];
vector <int> d[N];

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

int get(int pos){
	int res = 0;
	for(; pos >= 0; pos = (pos & (pos + 1)) - 1)
		res += f[pos];
	return res;
}

int get(int l, int r){
	return get(r) - get(l - 1);
}

const int D = 5000;

int main() {
	cin >> n;
	for(int i = 0; i < n; ++i){
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		x1 += D, y1 += D, x2 += D, y2 += D; 
		if(y1 == y2) 
			hs[y1].push_back( mp(min(x1, x2), max(x1, x2)) );	
		else 
			vs[x1].push_back( mp(min(y1, y2), max(y1, y2)) );	
	}

	long long res = 0;
	for(int y = 0; y < N; ++y) for(auto s : hs[y]){
		for(int i = 0; i < N; ++i) d[i].clear();
		memset(f, 0, sizeof f);

		int l = s.first, r = s.second;
		for(int x = l; x <= r; ++x) for(auto s2 : vs[x])
			if(s2.first <= y && s2.second > y) {
				d[s2.second].push_back(x);
				upd(x, 1);
			}

		for(int y2 = y + 1; y2 < N; ++y2){
			for(auto s2 : hs[y2]){			
				int cur = get(s2.first, s2.second);
				res += cur * (cur - 1) / 2;
			}
			for(auto x : d[y2]) upd(x, -1);
		}
	}

	cout << res << endl;
	return 0;
}                             	

#include<bits/stdc++.h>

using namespace std;

#define fore(i, l, r) for(int i = int(l); i < int(r); i++)
#define sz(a) int((a).size())

#define x first
#define y second

typedef long long li;
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) {
    fore(i, 0, sz(v)) {
        if(i) out << " ";
        out << v[i];
    }
    return out;
}

const int MOD = int(1e9) + 7;

inline int norm(int a) {
    if(a >= MOD) a -= MOD;
    if(a < 0) a += MOD;
    return a;
}
inline int mul(int a, int b) {
    return int(a * 1ll * b % MOD);
}
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);
}

int n;
li T;
vector<li> t;

inline bool read() {
    if(!(cin >> n >> T))
        return false;
    t.resize(n);
    fore(i, 0, n)
        cin >> t[i];
    return true;
}

vector<int> f, inf;

int C(int n, li k) {
    if(k > n || k < 0)
        return 0;
    return mul(f[n], mul(inf[k], inf[n - k]));
}

inline void solve() {
    f.resize(n + 5);
    inf.resize(n + 5);
    f[0] = inf[0] = 1;
    fore(i, 1, sz(f)) {
        f[i] = mul(i, f[i - 1]);
        inf[i] = mul(inf[i - 1], inv(i));
    }

    int sumC = 1;
    li bd = T;
    int pw2 = 1, i2 = (MOD + 1) / 2;

    vector<int> p(n + 1, 0);
    fore(i, 0, n) {
        pw2 = mul(pw2, i2);

        sumC = norm(mul(2, sumC) - C(i, bd));
        li need = t[i];
        if(bd > i + 1) {
            li sub = min(bd - i - 1, need);
            bd -= sub, need -= sub;
        }
        li rem = min(bd + 1, need);
        fore(k, 0, rem)
            sumC = norm(sumC - C(i + 1, bd - k));
        bd -= rem;

        p[i] = mul(sumC, pw2);
    }

    int ans = int(accumulate(p.begin(), p.end(), 0ll) % MOD);
    cout << ans << endl;
//    cerr << mul(ans, binPow(2, n)) << 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 N = 105;

int a[N];
int n;
int numPos[10], denPos[10];
int num, den;
const int MOD = 998244353;

struct halfState
{
	int carry;
	int mask;
	bool comp;
	
	halfState() {};
	halfState(int carry, int mask, bool comp) : carry(carry), mask(mask), comp(comp) {};
};

bool operator <(const halfState& x, const halfState& y)
{
	if(x.carry != y.carry) return x.carry < y.carry;
	if(x.mask != y.mask) return x.mask < y.mask;
	return x.comp < y.comp;
}

bool operator ==(const halfState& x, const halfState& y)
{
	return x.carry == y.carry && x.mask == y.mask && x.comp == y.comp;
}

bool operator !=(const halfState& x, const halfState& y)
{
	return x.carry != y.carry || x.mask != y.mask || x.comp != y.comp;
}

halfState go(const halfState& s, int pos, int digit, bool isNum)
{
	int newDigit = digit * (isNum ? num : den) + s.carry;
	int newCarry = newDigit / 10;
	newDigit %= 10;
	int newMask = s.mask;
	int maskPos = (isNum ? numPos[newDigit] : denPos[newDigit]);
	if(maskPos != -1) newMask |= (1 << maskPos);
	bool newComp = (newDigit < a[pos]) || (newDigit == a[pos] && s.comp);
	return halfState(newCarry, newMask, newComp);
}

struct state
{
	halfState numState;
	halfState denState;
	
	state() {};
	state(halfState numState, halfState denState) : numState(numState), denState(denState) {};
	
	void norm()
	{
		if(numState.mask & denState.mask)
			numState.mask = denState.mask = 1;
	};
	
	bool valid()
	{
		return bool(numState.mask & denState.mask) && numState.comp && denState.comp && (numState.carry == 0) && (denState.carry == 0);
	};
};

bool operator <(const state& x, const state& y)
{
	if(x.numState != y.numState) return x.numState < y.numState;
	return x.denState < y.denState;
}

state go(const state& s, int pos, int digit)
{
	halfState newNum = go(s.numState, pos, digit, true);
	halfState denNum = go(s.denState, pos, digit, false);
	state res(newNum, denNum);
	res.norm();
	return res;
}

int add(int x, int y)
{
	return (x + y) % MOD;
}

int ans = 0;

void calcFixed(int x, int y)
{
	num = x;
	den = y;
	for(int i = 0; i <= 9; i++)
		numPos[i] = denPos[i] = -1;
	int cnt = 0;
	for(int i = 1; i <= 9; i++)
		for(int j = 1; j <= 9; j++)
			if(i * y == j * x)
			{
				numPos[i] = denPos[j] = cnt++;
			}
	vector<map<state, int> > dp(102);
	dp[0][state(halfState(0, 0, true), halfState(0, 0, true))] = 1;
	for(int i = 0; i <= 100; i++)
		for(auto x : dp[i])
		{
			state curState = x.first;
			int curCount = x.second;
			for(int j = 0; j <= 9; j++)
			{
				state newState = go(curState, i, j);
				dp[i + 1][newState] = add(dp[i + 1][newState], curCount);
			}
		}
	for(auto x : dp[101])
	{
		state curState = x.first;
		int curCount = x.second;
		if(curState.valid())
			ans = add(ans, curCount);
	}
}

int main()
{
	string s;
	cin >> s;
	int len = s.size();
	reverse(s.begin(), s.end());
	for(int i = 0; i < len; i++)
	{
		a[i] = s[i] - '0';
 	}
 	for(int i = 1; i <= 9; i++)
 		for(int j = 1; j <= 9; j++)
 			if(__gcd(i, j) == 1)
 				calcFixed(i, j);
 	cout << ans << endl;
}