let id = id +['queue', 'stack', 'priority_queue']
let id = id +['ostream', 'istream', 'sstream']
let id = id +['pair', 'string']
let id = id +['queue', 'stack', 'priority_queue']
let id = id +['ostream', 'istream', 'sstream']
let id = id +['pair', 'string']