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#include <fstream>
using namespace std;
ifstream cin("q.in");
ofstream cout("q.out");
long long expow(long long a,long long b,long long mod) {
long long sol=1;
for(int i=0;(1LL<<i)<=b;i++) {
if(b&(1LL<<i))
sol=sol*a%mod;
a=a*a%mod;
}
return sol;
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
long long a,n,y;
cin>>a>>n;
y=expow(a,n-2,n);
cout<<y;
return 0;
}