05B1.c

#include <stdio.h>
int josephus ( int n ) {
  int result ;
  if ( ( n == 1 ) || ( n < 1 ) ) {
    return 1 ;
  }
  else if ( n % 2 == 0 ) {
    result = 2 * josephus ( n / 2 ) - 1 ;
    return result ;
  }
  else {
    result = 2 * josephus ( n / 2 ) + 1 ;
    return result ;
  }
}
int main ( void ) {
  int n ;
  while ( ( scanf ( "%d" , & n ) ) == 1 ) {
    printf ( "%d\n" , josephus ( n ) ) ;
  }
  return ( 0 ) ;
}