\( (400 - 12 - 15) \div 15 = (400 - 27) \div 15 = 373 \div 15 \)
\( 373 \div 15 = 24 \text{ (ост. 13)} \)
\( 5000 : (5000 \div 1) - 1 = 5000 : 5000 - 1 = 1 - 1 = 0 \)
Ответ: 24 (ост. 13); 0.