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

char next(char c) {
	if(c == 'Z') return 'A';
	return c + 1;
}

int main() {
	//~ string s = "ABCDEFGHIJKLMNOPQRSTUVWXZABCDEFGHIJKLMNPQRSTVWXYZ_BCDEFGHIJKLMNOPQSTUVWXYZABCDFGHIJKLMNOPQRSTUVWXYZ_ABCDEFHJKLMNOPQRSTUWXYZABCDFGHIJKLMOPQRSTUVWXYZ_ABCDEFGHIJKLMNOPQRSUVXYZABCDEFGHIJKLMNPQRSTUVWXYZ_ABCDEFGHJKLMOPQRSUVWXYZABCDFHIJKLMNOPQRSTUVWXYZABCDFGHIJKLMNOPQTUVWXYZ_ABCDEFGHIJKLMOPQRSTUVWXYZ_BCDEFGHIJKLMOPQRSTUVWXYZABCEFGHIJKLMNOPQRSTUVWXYZ_ABCDEFGHIJKLNOPQRSTUVWXYZ._ABCDEFGHIJKLMNOPQRSTUVWXZABCDEFGHIJKLMNPQRSTVWXYZABCDEFGHIJKLMNOPQSTUVWXYZ_ABCDEFGHIJKLMNOPQRSUVWXYZBCDEFGHIJKLMNOPQRTUVWXYZABCDEFGHIJLMNOPQRSTUVWXYZ_ABCDEFGHJKLMNOPQRTUVWXYZ_ABCDEFGHIJKLMNOPQRSUVWXYZABCDEFGHIJKLMNPQRSTUVWXYZ_ABCDEGHJKLMOPQRSTUVWXYZABCEFGHIJKLMNOPQRSTUVWXYZ_ABCDEFGHIJKLMNOPQRSUVWXYZABCDEFGIJKLMNOPQRSTUVWXYZABCDFGHIJKLMNOPQRSTUVWXYZ_ABCDEGHIJKLMNOPQRSTUVWXYZBDEFGHIJKLMNOPQRSUVWXYZABCDEFGHIJKLMNPQSTUVWXYZABCDEFGHJKLMNOPQRSTUVWXYZBCDEFGHIJKMNOPQRSTUVWXYZ_ABCDEFGHIJKLMNPQRSTUVWXYZABCDEGHIJKLMNOPQRSTUVWXYZ_ABCDEFGHIJKLMOPQRSTUVWXYZ,_ABCDEFGHIJKLNPQRSTUVWXYZABCEFGHIJKLMNOPQRSTVWXYZABCDEFGHIJKMNPQRSTUVWXYZ_ABCDEFGHIJKLNOPQRSTUVWXYZ.";
	//~ char now = 'A';
	//~ for(char c : s)
		//~ if(isupper(c)) {
			//~ while(now != c) {
				//~ cout << now;
				//~ now = next(now);
			//~ }
			//~ now = next(now);
		//~ } else {
			//~ cout << c;
		//~ }
	//~ cout << '\n';
	
	// YOU_ARE_GIVEN_TWO_INTEGERS_N_AND_M._YOUR_TASK_IS_TO_FIND_THE_FACTORIAL_OF_N,_MODULO_M.

	using ll = long long;
	ll n, m; cin >> n >> m;
	n = min(n, m);
	
	ll ans = 1 % m;
	for(int i = 1; i <= n; i ++)
		ans = ans * i % m;
	cout << ans << '\n';
}