[an error occurred while processing the directive]  
[an error occurred while processing the directive]   [an error occurred while processing the directive]

ОТВЕТЫ И РЕШЕНИЯ


НАЙДИТЕ ПАРЫ ЧИСЕЛ

(№ 4, 1999 г.)

1, 3; 2, 20; 4, 18; 5, 17; 6, 16; 7, 19; 8, 14; 9, 13; 10, 12; 11, 15.

В КАЖДОЙ СТРОЧКЕ ТОЛЬКО ТОЧКИ

(№ 4, 1999 г.)
Цифровой вариант примера выглядит так:

[an error occurred while processing the directive]  
[an error occurred while processing the directive] [an error occurred while processing the directive]