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

int MOD;

int fastPow(int nr, int p){
    int aux=1;
    while(p){
        if(p%2)
            aux=(aux*nr)%MOD;
        nr=(nr*nr)%MOD;
        p/=2;
    }
    return aux%MOD;
}

int main(){
    freopen("inversmodular.in","r",stdin);
    freopen("inversmodular.out","w",stdout);
    int a;
    scanf("%d%d", &a, &MOD);
    printf("%d", fastPow(a, MOD-2));
    return 0;
}