#include <bits/stdc++.h>
using namespace std;
using LL = long long int;
#define incID(i, l, r) for(int i = (l)    ; i <  (r); ++i)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); ++i)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); --i)
#define inc(i, n)  incID(i, 0, n)
#define dec(i, n)  decID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec1(i, n) decII(i, 1, n)
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))
#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second
#define FR front()
#define BA back()
#define ALL(v) v.begin(), v.end()
#define RALL(v) v.rbegin(), v.rend()
auto setmin   = [](auto & a, auto b) { return (b <  a ? a = b, true : false); };
auto setmax   = [](auto & a, auto b) { return (b >  a ? a = b, true : false); };
auto setmineq = [](auto & a, auto b) { return (b <= a ? a = b, true : false); };
auto setmaxeq = [](auto & a, auto b) { return (b >= a ? a = b, true : false); };
#define SI(v) static_cast<int>(v.size())
#define RF(e, v) for(auto & e: v)
#define until(e) while(! (e))
#define if_not(e) if(! (e))
#define ef else if
#define UR assert(false)
#define IN(T, ...) T __VA_ARGS__; IN_(__VA_ARGS__);
void IN_() { };
template<typename T, typename ... U> void IN_(T &  a, U &  ... b) { cin >> a; IN_(b ...); };
template<typename T                > void OUT(T && a            ) { cout << a << endl; }
template<typename T, typename ... U> void OUT(T && a, U && ... b) { cout << a << " "; OUT(b ...); }

// ---- ----

vector<pair<LL, LL>> prime_factorization(LL x) {
	assert(x > 0);
	vector<pair<LL, LL>> f;
	for(LL i = 2; i <= x; i++) {
		if(i * i > x) { i = x; }
		if(x % i == 0) {
			f.EB(i, 0);
			while(x % i == 0) { f.back().SE++; x /= i; }
		}
	}
	return f;
}

template<typename T> istream & operator>>(istream & s, vector<T> & v) { RF(e, v) { s >> e; } return s; }
template<typename T> ostream & operator<<(ostream & s, vector<T> const & v) {
	inc(i, SI(v)) { s << (i == 0 ? "" : " ") << v[i]; }
	return s;
}

#define UQwoS(v) v.erase(unique(ALL(v)), v.end())
#define UQ(v) sort(ALL(v)); UQwoS(v)

int main() {
	int i = 100000;
	vector<LL> p;
	while(true) {
		i++;
		if(prime_factorization(i) == vector<pair<LL, LL>>{ { i, 1 } }) {
			p.PB(i);
		}
		if(SI(p) == 10) { break; }
	}
	
	vector<LL> ans;
	inc(i, 10) {
	inc(j, 10) {
		ans.PB(p[i] * p[j]);
	}
	}
	ans.PB(1);
	UQ(ans);
	
	IN(int, n);
	n--;
	OUT(ans[n]);
}