#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
  #include<atcoder/all>
  using namespace atcoder;
#endif
using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using vl = vector<ll>;
using vb = vector<bool>;
using vd = vector<double>;
using vs = vector<string>;
using vvi = vector<vector<int>>;
using vvl = vector<vector<ll>>;
#define ALL(x) (x).begin(), (x).end()
#define coutY cout << "Yes" << endl;
#define coutN cout << "No" << endl;
#define arrIn(arr, start, N) for (ll i = (start); i < (N); ++i) cin >> arr[i];
#define arrOut(arr, start, N) for  (ll i = (start); i < (N); ++i) { cout << arr[i]; if(i==(N)-1) cout << endl; else cout << " "; }
#define UNIQUE(A) sort(ALL(A)); A.erase(unique(ALL(A)),A.end());
const int mod9 = 998244353;
const int mod1 = 1000000007;
const int intM=numeric_limits<int>::max();
const ll llM=numeric_limits<ll>::max();
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
string abc="abcdefghijklmnopqrstuvwxyz";
vi dx={0,1,0,-1};
vi dy={-1,0,1,0};
vi ddx={-1,0,1,-1,1,-1,0,1};
vi ddy={-1,-1,-1,0,0,1,1,1};

void yn(bool tf) { cout << (tf ? "Yes" : "No") << endl; }
void YN(bool tf) { cout << (tf ? "YES" : "NO") << endl; }

template<class T>
using priority_queueR = priority_queue<T, vector<T>, greater<T>>;

//cout << fixed << setprecision(20) <<

void arrOut2(auto A){
  for(auto x:A){
    for(auto y:x){
      cout << y << " ";
    }
    cout << endl;
  }
}

bool kaibun(string S){
  string T=S;
  reverse(ALL(S));
  return S==T;
}

int ketawa(int x){
  string S=to_string(x);
  int sum=0;
  int len=S.size();
  for(int i=0;i<len;i++){
    sum+=(int)(S[i]-'0');
  }
  return sum;
}

ll Power(ll a,ll b,ll m){
  ll ans=1,p=a;
  for(ll i=0;i<60;i++){
    if(b&(1LL<<i)){
      ans=(ans*p)%m;
    }
    p=(p*p)%m;
  }
  return ans;
}

ll ncr(ll n,ll r,ll m){
  if(r<=0||r>n)return 0;
  ll bunshi=1;
  for(ll i=1;i<=n;i++)bunshi=(bunshi*i)%m;

  ll bunbo=1;
  for(ll i=1;i<=r;i++)bunbo=(bunbo*i)%m;
  for(ll i=1;i<=n-r;i++)bunbo=(bunbo*i)%m;

  return (bunshi*Power(bunbo,m-2,m))%m;
}

vector<vector<int>> BFS(int H,int W,vector<string> S,int sh,int sw){
  vector<vector<int>> visited(H,vector<int> (W,intM));
  queue<tuple<int,int,int>> q;
  visited[sh][sw]=0;
  q.push({0,sh,sw});
  while(!q.empty()){
    auto [w,nowH,nowW]=q.front();
    q.pop();
    for(int i=0;i<4;i++){
      int nextH=nowH+dy[i];
      int nextW=nowW+dx[i];
      if(0<=nextH&&nextH<H&&0<=nextW&&nextW<W&&S[nextH][nextW]!='#'&&visited[nextH][nextW]==intM){
        visited[nextH][nextW]=w+1;
        q.push({w+1,nextH,nextW});
      }
    }
  }
  
  return visited;
}

vector<vector<int>> BFS2(int H,int W,vector<string> h,vector<string> v,int sh,int sw){
  vector<vector<int>> visited(H,vector<int> (W,intM));
  queue<tuple<int,int,int>> q;
  visited[sh][sw]=0;
  q.push({0,sh,sw});
  while(!q.empty()){
    auto [w,nowH,nowW]=q.front();
    q.pop();
    for(int i=0;i<4;i++){
      int nextH=nowH+dy[i];
      int nextW=nowW+dx[i];
      if(0<=nextH&&nextH<H&&0<=nextW&&nextW<W&&((i%2==0&&h[min(nowH, nextH)][nextW]=='0')||(i%2==1&&v[nextH][min(nowW, nextW)]=='0'))&&visited[nextH][nextW]==intM){
        visited[nextH][nextW]=w+1;
        q.push({w+1,nextH,nextW});
      }
    }
  }
  
  return visited;
}

vector<ll> Dijkstra(int N,vector<vector<pair<ll,int>>> edge,int s){
    vector<ll> visited(N+1,llM);
    priority_queue<pair<ll,int>, vector<pair<ll,int>>, greater<pair<ll,int>>> q;
    visited[s]=0LL;
    q.push({0LL,s});
    while(!q.empty()){
        auto [w,now]=q.top();
        q.pop();
        for(pair<ll,int> nextEdge:edge[now]){
            int next=nextEdge.second;
            int nextW=w+nextEdge.first;
            if(visited[next]>nextW){
                visited[next]=nextW;
                q.push({nextW,next});
            }
        }
    }
    return visited;
}

template<typename T,typename U>
vector<T> Imos(U N,U M,vector<U> L,vector<U> R,vector<T> W){
    vector<T> A(N+2,0);
    for(int i=0;i<M;i++){
        A[L[i]]+=W[i];
        A[R[i]+1]-=W[i];
    }

    for(int i=1;i<=N;i++){
        A[i]+=A[i-1];
    }

    return A;
}

template<typename T,typename U>
vector<vector<T>> Imos2(U N,U M,U K,vector<U> r1,vector<U> c1,vector<U> r2,vector<U> c2,vector<T> W){
    vector<vector<T>> A(N+2,vector<T> (M+2,0));
    for(int i=0;i<K;i++){
        A[r1[i]][c1[i]]+=W[i];
        A[r2[i]+1][c2[i]+1]+=W[i];
        A[r1[i]][c2[i]+1]-=W[i];
        A[r2[i]+1][c1[i]]-=W[i];
    }

    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            A[i][j]+=A[i-1][j];
        }
    }

    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            A[i][j]+=A[i][j-1];
        }
    }

    return A;
}

template<typename T,typename U>
vector<T> PrefixSum(U N,vector<T> A){
    vector<T> ruiseki(N+1,0);
    for(int i=1;i<=N;i++){
        ruiseki[i]=ruiseki[i-1]+A[i];
    }
    return ruiseki;
}

template<typename T,typename U>
vector<vector<T>> PrefixSum2(U N,U M,vector<vector<T>> A){
    vector<vector<T>> ruiseki(N+1,vector<T> (M+1,0));
    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            ruiseki[i][j]=A[i][j];
        }
    }

    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            ruiseki[i][j]+=ruiseki[i-1][j];
        }
    }

    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            ruiseki[i][j]+=ruiseki[i][j-1];
        }
    }

    return ruiseki;
}

random_device rd;
mt19937 gen(rd());
uniform_int_distribution<> dist(0,2000000000);

int rnd(int MIN,int MAX){
  return MIN+dist(gen)%(MAX-MIN+1);
}

// auto start = high_resolution_clock::now();

// ll getTime(){
//   auto end = high_resolution_clock::now();
//   return  duration_cast<milliseconds>(end - start).count();
// }

// bool CheckTime(auto limit,auto eps){
//   return  getTime()<limit-eps;
// }

int main() {
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  int N;
  cin >> N;
  cout << N*N << endl;
 
  return 0;
}