public static void main ( String [ ] args ) {
  Scanner s = new Scanner ( System . in ) ;
  int x = s . nextInt ( ) ;
  if ( x == 3 ) {
    System . out . println ( 5 ) ;
    System . exit ( 0 ) ;
  }
  for ( int i = 0 ;
  i < 20 ;
  i ++ ) {
    if ( i % 2 == 0 ) continue ;
    int y = ( ( i / 2 ) * ( i / 2 ) ) + ( ( i / 2 + 1 ) * ( i / 2 + 1 ) ) ;
    if ( x <= y ) {
      System . out . println ( i ) ;
      System . exit ( 0 ) ;
    }
  }
}

public static void main ( String [ ] args ) { Scanner s = new Scanner ( System . in ) ; int x = s . nextInt ( ) ; if ( x == 3 ) { System . out . println ( 5 ) ; System . exit ( 0 ) ; } for ( int i = 0 ; i < 20 ; i ++ ) { if ( i % 2 == 0 ) continue ; int y = ( ( i / 2 ) * ( i / 2 ) ) + ( ( i / 2 + 1 ) * ( i / 2 + 1 ) ) ; if ( x <= y ) { System . out . println ( i ) ; System . exit ( 0 ) ; } } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (continue_statement)) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))))))))))