public static void main ( String [ ] $ ) {
  Scanner sc = new Scanner ( in ) ;
  long n = sc . nextLong ( ) ;
  long s = ( long ) sqrt ( n ) + 1 ;
  int ans = 100 ;
  for ( long i = 1 ;
  i <= s ;
  i ++ ) {
    if ( n % i == 0 ) ans = min ( F ( i , n / i ) , ans ) ;
  }
  out . println ( ans ) ;
}

public static void main ( String [ ] $ ) { Scanner sc = new Scanner ( in ) ; long n = sc . nextLong ( ) ; long s = ( long ) sqrt ( n ) + 1 ; int ans = 100 ; for ( long i = 1 ; i <= s ; i ++ ) { if ( n % i == 0 ) ans = min ( F ( i , n / i ) , ans ) ; } out . println ( ans ) ; }
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