2. Petya went to the store for two consecutive days and both times he bought buns for exactly 84 rubles. On the second day, a bun was one ruble more expensive than on the first day, and on the first day, it was more than two rubles. Buns always cost a whole number of rubles.

How many buns did Petya buy over the two days? If there are several possible options, list them in any order separated by a semicolon.

Examples of answer formats:

10

$10 ; 20$
Answer: $26 ; 49$ || $26 ; 49 ;|| 26,49$ || 49; 26 || 49, 26 || 49; 26$