public static void main ( String [ ] args ) {
  int dis , step = 0 ;
  Scanner sc = new Scanner ( System . in ) ;
  dis = sc . nextInt ( ) ;
  if ( dis / 5 >= 1 ) {
    step = dis / 5 ;
    dis = dis % 5 ;
  }
  if ( dis / 4 >= 1 ) {
    step += dis / 4 ;
    dis = dis % 4 ;
  }
  if ( dis / 3 >= 1 ) {
    step += dis / 3 ;
    dis = dis % 3 ;
  }
  if ( dis / 2 >= 1 ) {
    step += dis / 2 ;
    dis = dis % 2 ;
  }
  step += dis ;
  System . out . println ( step ) ;
}

public static void main ( String [ ] args ) { int dis , step = 0 ; Scanner sc = new Scanner ( System . in ) ; dis = sc . nextInt ( ) ; if ( dis / 5 >= 1 ) { step = dis / 5 ; dis = dis % 5 ; } if ( dis / 4 >= 1 ) { step += dis / 4 ; dis = dis % 4 ; } if ( dis / 3 >= 1 ) { step += dis / 3 ; dis = dis % 3 ; } if ( dis / 2 >= 1 ) { step += dis / 2 ; dis = dis % 2 ; } step += dis ; System . out . println ( step ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (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)))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))