문제
A를 1부터 N까지 자연수가 임의의 순서로 (1과 N 사이의 모든 자연수는 1번씩 등장한다) 이루어진 수열이라고 하자.
이 때, B를 다음과 같이 정의하자.
B[k] = 1 (수열 A의 처음 k개 원소가 1과 K사이의 숫자로만 이루어져 있을 때)
0 (위의 경우가 아닐 때)
수열 B와 A의 일부 원소가 주어졌을 때, 수열 A를 구하는 프로그램을 작성하시오.
출력
수열 A의 원소를 공백으로 구분하여 출력한다. 만약, 정답이 없다면 '-1'을 출력한다.
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