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#include <bits/stdc++.h>
using namespace std;
int MOD;
int pw(int x, int y){
if(y==0) return 1;
int z=pw(x,y/2)%MOD;
if(y%2) return (z*z*x)%MOD;
return (z*z)%MOD;
}
inline int invMod(int x){
int ans=pw(x,MOD-2);
return ans%MOD;
}
int main(){
ifstream fin("invermodular.in");
ofstream fout("invermodular.out");
int x;
fin>>::MOD>>x;
// fout<<invMod(x);
}