#include <fstream>
using namespace std;

ifstream fin("inversmodular.in");
ofstream fout("inversmodular.out");


long long int rez=1,a,mod;

void putlog(long long int a, long long int b)
{
    while(b)
    {
        if(b%2==1)
        {
            rez=(rez*a)%mod;
            b--;
        }
        a=a*a;
        a%=mod;
        b/=2;
    }
}

int main()
{
    fin>>a>>mod;
    putlog(a,mod-2);
    fout<<rez;
    return 0;
}