#include<bits/stdc++.h>
using namespace std;  
#define REP(i,n) for(int i=0;i<(n);i++)  
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
#define pii pair<int,int>
#define piii pair<int,pii>
#define mp make_pair
#define pb push_back  
#define ALL(a) (a).begin(),(a).end()
#define FST first
#define SEC second  
const int INF = (INT_MAX/2);
const ll LINF = (LLONG_MAX/2);
const double eps = 1e-14;
const double PI = M_PI;  
#define DEB cout<<"!"<<endl
#define SHOW(a,b) cout<<(a)<<" "<<(b)<<endl
#define SHOWARRAY(ar,i,j) REP(a,i)REP(b,j)cout<<ar[a][b]<<((b==j-1)?((a==i-1)?("\n\n"):("\n")):(" "))
  
#define DIV 1000000007

typedef vector<ll> Array;
typedef vector<Array> matrix;

int a,b;

bool check(int i){
  REP(j,b){
    if(i >= 5)
      i -= 5;
    if(i == 0)
      return 1;
  }
  if(i <= a)
    return 1;
  else
    return 0;
}

int main(){
  cin >> a >> b;
  
  for(int i = 1; i <= 1000; i++)
    if(check(i))
      cout << i << endl;
  return 0;
}