#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

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

/* BOOST MULTIPRECISION
#include<boost/multiprecision/cpp_int.hpp>
using namespace boost::multiprecision;
//*/

typedef long long ll;

#define rep(i, s, n) for (int i = (int)(s); i < (int)(n); i++)
#define rrep(i, s, n) for (int i = (int)(n)-1; i >= (int)(s); i--)

template <typename T> bool chmin(T &a, const T &b) {
	if (a <= b) return false;
	a = b;
	return true;
}

template <typename T> bool chmax(T &a, const T &b) {
	if (a >= b) return false;
	a = b;
	return true;
}

template <typename T> T max(vector<T> &a){
	assert(!a.empty());
	T ret = a[0];
	for (int i=0; i<(int)a.size(); i++) chmax(ret, a[i]);
	return ret;
}

template <typename T> T min(vector<T> &a){
	assert(!a.empty());
	T ret = a[0];
	for (int i=0; i<(int)a.size(); i++) chmin(ret, a[i]);
	return ret;
}

template <typename T> T sum(vector<T> &a){
	T ret = 0;
	for (int i=0; i<(int)a.size(); i++) ret += a[i];
	return ret;
}

int main(){
	int b, c; cin >> b >> c;
	if (b == 1 && c == 1){
		cout << 1 << '\n';
		return 0;
	}
	
	auto henkan = [&](const array<int,4> &ta) -> ll {
		return (ll)ta[0] | ((ll)ta[1]<<10) | ((ll)ta[2]<<20) | ((ll)ta[3]<<30);
	};

	unordered_map<ll,int> var;
	vector<array<int,4>> dat;
	rep(i,1,b){
		if (__gcd(i,b)==1){
			rep(j,0,b){
				if(j%c==0){
					dat.push_back({i,j,0,1});
					var[henkan(dat.back())]=dat.size()-1;
				}
			}
		}
	}

	vector<int> inv(b);
	rep(i,1,b){
		if (__gcd(i,b)==1){
			rep(j,0,b){
				if(i*j%b==1){
					inv[i]=j;
				}
			}
		}
	}

	int m = dat.size();
	vector<array<int,4>> datinv;
	for (auto i: dat){
		int x = inv[(i[0]*i[3]%b-i[1]*i[2]%b+b)%b];
		datinv.push_back({i[3]*x%b, ((-i[1])%b+b)%b*x%b, ((-i[2])%b+b)%b*x%b, i[0]*x%b});
	}

	auto prod = [&](const array<int,4> &x, const array<int,4> &y) -> array<int,4> {
		array<int,4> z={0,0,0,0};
		rep(i,0,2){
			rep(j,0,2){
				rep(k,0,2){
					z[i*2+j]+=x[i*2+k]*y[k*2+j];
					z[i*2+j]%=b;
				}
			}
		}
		return z;
	};

	vector<bool> seen(m);
	int cnt = 0;
	rep(i,0,m){
		if (cnt >= 101){
			break;
		}
		if (seen[i]){
			continue;
		}
		cnt++;
		array<int,4> mat = dat[i];
		rep(j,0,m){
			seen[var[henkan(prod(prod(dat[j],mat),datinv[j]))]]=1;
		}
	}

	if (cnt>=101){
		cout<<"100+"<<'\n';
	}else{
		cout<<cnt<<'\n';
	}
}