bold 처리도 안 되있고, 예제 1의 힌트는 잘못된 것 같습니다.

Clarification of the first example: Mirka will play the following keys, respectively: 1, 3, 0, 3, 1. Denoted in bold are the keys that she played correctly.

Clarification of the second example: Mirka will play the following keys, respectively: 2, -2, -6, -2, 2, 6, 10.