문제https://www.acmicpc.net/problem/4779풀이(7분)import java.io.BufferedReaderimport java.io.InputStreamReaderimport kotlin.math.powfun main() { val br = BufferedReader(InputStreamReader(System.`in`)) val sb = StringBuilder() var input: String? = br.readLine() val arr = Array(13) { "" } arr[0] = "-" for (i in 1..12) { sb.clear() sb.append(arr[i - 1]) for (j in 1..