public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  double n = in . nextInt ( ) ;
  double R = in . nextInt ( ) ;
  double r = in . nextInt ( ) ;
  if ( R < r ) {
    System . out . println ( "NO" ) ;
    return ;
  }
  double cos = Math . sqrt ( Math . pow ( R , 2 ) - 2 * R * r ) / ( R - r ) ;
  if ( Math . PI / Math . acos ( cos ) >= n || n == 1 ) {
    System . out . println ( "YES" ) ;
  }
  else {
    System . out . println ( "NO" ) ;
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; double n = in . nextInt ( ) ; double R = in . nextInt ( ) ; double r = in . nextInt ( ) ; if ( R < r ) { System . out . println ( " NO " ) ; return ; } double cos = Math . sqrt ( Math . pow ( R , 2 ) - 2 * R * r ) / ( R - r ) ; if ( Math . PI / Math . acos ( cos ) >= n || n == 1 ) { System . out . println ( " YES " ) ; } else { System . out . println ( " NO " ) ; } }
(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: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (floating_point_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: (identifier))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal))) right: (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (identifier))))) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) right: (identifier)) right: (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 (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))