public static void main ( String [ ] args ) throws Exception {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  sc . nextLine ( ) ;
  StringBuilder s = new StringBuilder ( sc . nextLine ( ) ) ;
  char max = s . charAt ( 0 ) ;
  boolean fl = false ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    max = ( char ) Math . max ( s . charAt ( i ) , s . charAt ( i - 1 ) ) ;
    if ( s . charAt ( i - 1 ) > s . charAt ( i ) ) {
      s . deleteCharAt ( i - 1 ) ;
      fl = true ;
      break ;
    }
  }
  if ( ! fl ) {
    s . deleteCharAt ( s . indexOf ( String . valueOf ( max ) ) ) ;
  }
  System . out . println ( s ) ;
}

public static void main ( String [ ] args ) throws Exception { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; sc . nextLine ( ) ; StringBuilder s = new StringBuilder ( sc . nextLine ( ) ) ; char max = s . charAt ( 0 ) ; boolean fl = false ; for ( int i = 1 ; i < n ; i ++ ) { max = ( char ) Math . max ( s . charAt ( i ) , s . charAt ( i - 1 ) ) ; if ( s . charAt ( i - 1 ) > s . charAt ( i ) ) { s . deleteCharAt ( i - 1 ) ; fl = true ; break ; } } if ( ! fl ) { s . deleteCharAt ( s . indexOf ( String . valueOf ( max ) ) ) ; } System . out . println ( s ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_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)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (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 (decimal_integer_literal))))) (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 (expression_statement (assignment_expression left: (identifier) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal))))) (expression_statement (assignment_expression left: (identifier) right: (true))) (break_statement))))) (if_statement condition: (parenthesized_expression (unary_expression operand: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))