#include 
#include 
using namespace std;

int kvadratiNaCifri(int broj) {
    int zbir = 0;
    while (broj > 0) {
        int cifra = broj % 10;
        zbir += cifra * cifra;
        broj /= 10;
    }
    return zbir;
}

int main() {
  int x,n;
  cin>>x>>n;
  
    vector v;
    int first_number = x;
  for(int i=1;i<=100;i++){
      v.push_back(first_number);
    first_number=kvadratiNaCifri(first_number);
      if(i == n) {
          cout << first_number << endl;
          return 0;
      }
  }
    vector repetion;
    for(int i = 0; i < v.size(); i++) {
        int se_povtoruva = -1;
        for(int j = i + 1; j < v.size(); j++) {
            if(v[i] == v[j]) {
                se_povtoruva = j;
                break;
            }
        }
        if(se_povtoruva != -1) {
            n -= i;
            for(int j = i; j < se_povtoruva; j++) {
                repetion.push_back(v[j]);
                
            }
            break;
        }
    }
    if(n % repetion.size() == 0) {
        cout << repetion[repetion.size() - 1] << endl;
    }
    else {
        cout << repetion[n % repetion.size()] << endl;
    }
}