#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef pair pii; typedef pair pll; const int INF = 1e9; const ll LINF = 1e18; template ostream& operator << (ostream& out,const pair& o){ out << "(" << o.first << "," << o.second << ")"; return out; } template ostream& operator << (ostream& out,const vector V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; } template ostream& operator << (ostream& out,const vector > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; } template ostream& operator << (ostream& out,const map mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; } /* 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; } inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; } ll powmod(ll a,ll b,ll m) {ll res=1;a%=m;for(;b;b>>=1){if(b&1)res=res*a%m;a=a*a%m;}return res;} ll Euler_Phi(ll m) { if(m==0)return 0; ll res = m; for (ll i = 2; i * i <= m; i++) { if (m % i == 0) { res = res / i * (i - 1); while(m % i == 0) m/=i; } } if (m != 1) res = res / m * (m - 1); return res; } vector Phi; void initPhi(ll MAXM){ Phi.resize(MAXM); for(int i = 1; i < MAXM;i++) Phi[i] = Euler_Phi(i); } ll greedy_test(ll a,ll n,ll m){ if(a == 1) return 1; ll ret = 1; for(int i = 0; i < n;i++){ ll t = ret; ret = 1; for(int j = 0; j < t;j++){ ret *= a; if(ret>=m) return m; } } return ret; } // a↑↑b mod m ll tetration(ll a,ll b,ll m){ if(m == 1) return 0; if(a == 1 || b == 0) return 1; ll t = greedy_test(a,b-1,m+1); if(t <= m) return powmod(a,t,m); return powmod(a,m+(tetration(a, b-1,Phi[m])-m)%Phi[m],m); } ll solve(){ ll res = 0; ll A,N,M; cin >> A >> N >> M; initPhi(M+1); res = tetration(A, N, M); return res; } int main(void) { cin.tie(0); ios_base::sync_with_stdio(false); cout << solve() << endl; return 0; }