#include <bits/stdc++.h>

using namespace std;

int main()
{
	int t;
	cin >> t;

	while (t--)
	{
		int k;
		cin >> k;

		for (int i = 1; ; i++)
		{
			if (i % 3 == 0 || i % 10 == 3)
				continue;
			if (--k == 0)
			{
				cout << i << '\n';
				break;
			}
		}
	}
}

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main()
{
	int t;
	cin >> t;

	while (t--)
	{
		ll a, b, c;
		cin >> a >> b >> c;

		ll n = 2 * abs(a - b);
		if (a > n || b > n || c > n)
			cout << -1 << '\n';
		else
		{
			ll d = n / 2 + c;
			while (d > n) d -= n;
			cout << d << '\n';
		}
	}
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

int main()
{
	int t;
	cin >> t;

	while (t--)
	{
		int k;
		cin >> k;

		int a = 1;
		int x = 1;
		int i = 1;

		while (k >= x + a)
		{
			x += a;
			a += 2;
			i += 1;
		}

		int m = k - x + 1;
		if (m <= i)
			cout << m << ' ' << i << '\n';
		else
			cout << i << ' ' << (i - (m - i)) << '\n';
	}
}

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const ll P2LIM = (ll)2e18;

int solve(string s, string t)
{
	int tp = 0;
	int sp = 0;
	int taken = 0;

	while (sp < s.length() && tp < t.length())
	{
		if(s[sp] == t[tp])
		{
			taken++;
			tp++;
		}
		sp++;
	}

	return (int)s.length() - taken + (int)t.length() - taken;
}

vector<string> ts;

int main()
{
	for (ll p2 = 1; p2 <= P2LIM; p2 *= 2)
		ts.push_back(to_string(p2));

	int t;
	cin >> t;

	while (t--)
	{
		string n;
		cin >> n;

		int ans = n.length() + 1;
		for (auto p2 : ts)
			ans = min(ans, solve(n, p2));
		cout << ans << '\n';
	}

	return 0;
}

#include <bits/stdc++.h>

using namespace std;

int cntsrc[26]; // don't forget to memset it but not cnt
int* cnt = cntsrc - 'a'; // so cnt['a'] = cntsrc[0] and so on

pair<string, string> decrypt(string s)
{
	string order;
	reverse(s.begin(), s.end());
	for (auto c : s)
	{
		if (!cnt[c])
			order.push_back(c);
		cnt[c]++;
	}

	int m = order.length();
	int originalLength = 0;
	for (int i = 0; i < m; i++)
		originalLength += cnt[order[i]] / (m - i);

	reverse(order.begin(), order.end());
	return { string(s.rbegin(), s.rbegin() + originalLength), order };
}

string encrypt(pair<string, string> p)
{
	string result = p.first;

	for (auto c : p.second)
	{
		string temp;
		for (auto d : p.first)
			if (d != c)
			{
				temp.push_back(d);
				result.push_back(d);
			}
		p.first = temp;
	}

	return result;
}

int main()
{
	int t;
	cin >> t;

	while (t--)
	{
		memset(cntsrc, 0, sizeof(cntsrc));
		string s;
		cin >> s;

		auto ans = decrypt(s);
		auto check = encrypt(ans);

		if (check == s)
			cout << ans.first << ' ' << ans.second << '\n';
		else
			cout << "-1\n";
	}

	return 0;
}

#include <bits/stdc++.h>

using namespace std;

string solve1(string n)
{
	string res(n.length(), '9');
	for (char c = '8'; c >= '0'; c--)
	{
		string t(n.length(), c);
		if (t >= n)
			res = t;
	}

	return res;
}

string solve2(string n)
{
	string res = solve1(n);

	for(char a = '0'; a <= '9'; a++)
		for (char b = a + 1; b <= '9'; b++)
		{
			bool n_ok = true;
			for (int i = 0; i < n.length(); i++)
			{
				if (n[i] < b)
				{
					string t = n;
					if (t[i] < a) t[i] = a;
					else t[i] = b;
					for (int j = i + 1; j < n.length(); j++)
						t[j] = a;
					if (res > t)
						res = t;
				}

				if(n[i] != a && n[i] != b)
				{
					n_ok = false;
					break;
				}
			}

			if (n_ok) return n;
		}

	return res;
}

string solve()
{
	string n;
	int k;
	cin >> n >> k;

	if (k == 1) return solve1(n);
	else return solve2(n);
}

int main()
{
	int t;
	cin >> t;

	while (t--)
		cout << solve() << '\n';

	return 0;
}

#include <bits/stdc++.h>

using namespace std;

string solve()
{
	string n;
	int k;
	cin >> n >> k;

	while (true)
	{
		set<char> s;
		for (auto c : n) s.insert(c);
		if (s.size() <= k) return n;

		s.clear();
		int ptr = 0;
		for (; ; ptr++)
		{
			s.insert(n[ptr]);
			if (s.size() > k)
			{
				while (n[ptr] == '9')
					ptr--;
				n[ptr]++;
				for (int i = ptr + 1; i < n.size(); i++)
					n[i] = '0';
				break;
			}
		}
	}
}

int main()
{
	int t;
	cin >> t;

	while (t--)
		cout << solve() << '\n';
	
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

string solveFillingSuffix(string& n, char d, int from)
{
	for (int i = from; i < n.length(); i++)
		n[i] = d;
	return n;
}

void decAt(map<char, int>& d, char c)
{
	if (d.count(c))
	{
		d[c]--;
		if (d[c] == 0) d.erase(c);
	}
}

string solve()
{
	string n;
	int k;
	cin >> n >> k;

	map<char, int> d;
	int pref = 0;

	while (pref < n.length())
	{
		if (d.count(n[pref]))
		{
			d[n[pref++]]++;
			continue;
		}
		if (d.size() == k) break;
		d[n[pref++]]++;
	}

	if (pref == n.length())
		return n;

	while (true)
	{
		if (n[pref] == '9')
		{
			decAt(d, n[--pref]);
			continue;
		}

		if (d.size() < k)
		{
			d[++n[pref]]++;
			return solveFillingSuffix(n, d.size() < k ? '0' : d.begin()->first, pref + 1);
		}

		auto it = d.upper_bound(n[pref]);
		if (it == d.end())
		{
			decAt(d, n[--pref]);
			continue;
		}

		n[pref] = it->first;
		return solveFillingSuffix(n, d.begin()->first, pref + 1);
	}
}

int main()
{
	int t;
	cin >> t;

	while (t--)
		cout << solve() << '\n';
	
	return 0;
}//