сортировальная машина группирует перфокарты по признаковым пробивкам

Makarov: a card sorter arranges a deck of input cards in sequence by a common key, a card sorter arranges punched cards according a set of keys, a card sorter arranges punched cards according to a common key, a card sorter separates punched cards according a set of keys, a card sorter separates punched cards according to a common key, card sorter arranges a deck of input cards in sequence by a common key, card sorter arranges punched cards according a set of keys, card sorter arranges punched cards according to a common key, card sorter separates punched cards according a set of keys, card sorter separates punched cards according to a common key