public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  long a = sc . nextInt ( ) ;
  long b = sc . nextInt ( ) ;
  long c = sc . nextInt ( ) ;
  long d = sc . nextInt ( ) ;
  boolean bl = false ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( a + c * i - d * ( n - i - 1 ) <= b && b <= a + d * i - c * ( n - i - 1 ) ) {
      bl = true ;
    }
  }
  String ans = ( bl == true ) ? "YES" : "NO" ;
  System . out . println ( ans ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; long a = sc . nextInt ( ) ; long b = sc . nextInt ( ) ; long c = sc . nextInt ( ) ; long d = sc . nextInt ( ) ; boolean bl = false ; for ( int i = 0 ; i < n ; i ++ ) { if ( a + c * i - d * ( n - i - 1 ) <= b && b <= a + d * i - c * ( n - i - 1 ) ) { bl = true ; } } String ans = ( bl == true ) ? " YES " : " NO " ; System . out . println ( ans ) ; }
(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)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (boolean_type) declarator: (variable_declarator name: (identifier) value: (false))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal))))) right: (identifier)) right: (binary_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal)))))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (true))))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (ternary_expression condition: (parenthesized_expression (binary_expression left: (identifier) right: (true))) consequence: (string_literal) alternative: (string_literal)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))