#include <string>
#include <vector>
#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<stack>
#include<queue>
#include<cmath>
#include<algorithm>
#include<functional>
#include<list>
#include<deque>
#include<bitset>
#include<set>
#include<map>
#include<unordered_map>
#include<cstring>
#include<sstream>
#include<complex>
#include<iomanip>
#include<numeric>
#define X first
#define Y second
#define pb push_back
#define rep(X,Y) for (int (X) = 0;(X) < (Y);++(X))
#define rrep(X,Y) for (int (X) = (Y-1);(X) >=0;--(X))
#define repe(X,Y) for ((X) = 0;(X) < (Y);++(X))
#define peat(X,Y) for (;(X) < (Y);++(X))
#define all(X) (X).begin(),(X).end()
#define rall(X) (X).rbegin(),(X).rend()

using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<class T> using vv=vector<vector<T>>;
template<class T> ostream& operator<<(ostream &os, const vector<T> &t) {
os<<"{"; rep(i,t.size()) {os<<t[i]<<",";} os<<"}"<<endl; return os;}
template<class S, class T> ostream& operator<<(ostream &os, const pair<S,T> &t) { return os<<"("<<t.first<<","<<t.second<<")";}
ll modpow(ll r,ll n,ll m){
  //  if(m>1)n=(n%(m-1)+m-1)%(m-1);
  if(n==0)return 1ll;
  ll tmp=modpow(r,n/2,m);
  return tmp*tmp%m*(n%2?r:1ll)%m;
}
int main(){
  ios_base::sync_with_stdio(false);
  cout<<fixed<<setprecision(0);
  int i,j,k;
  ll a,n,m;
  cin>>a>>n>>m;
  if(m==1){cout<<0<<endl; return 0;}
  vector<int> memo(m,-1),v;
  ll p=1%m;
  rep(i,m+10){
    if(memo[p]>=0){
      n-=memo[p]; n%=i-memo[p];
      cout<<v[n+memo[p]]<<endl;
      return 0;
    }
    if(n==i){
      cout<<p<<endl;
      return 0;
    }
    memo[p]=i;
    v.pb(p);
    p=modpow(a,p,m);
  }
  return 0;
}