Çàäà÷à . 39470

var s, n: integer;
begin
  readln(s);
  n := 2;
  while s > 15 do
    begin
    s := s - 5;
    n := n * 2 + 1 
    end;
  writeln(n)
end.

s = int(input())
n = 2
while s > 15:
    s = s - 5
    n = n * 2 + 1
print(n)

àëã
íà÷
 öåë n, s
 ââîä s
 n :=2
íö ïîêà s > 15
   s := s - 5
   n := n * 2 + 1
 êö
 âûâîä n
êîí

#include <iostream>
using namespace std;

int main()
{ 
  int s, n;
  cin >> s;
  n = 2;
  while (s > 15) 
  { 
    s = s - 5; 
    n = n * 2 + 1; 
  }
  cout << n << endl;
  return 0;
}