import java.io.*; import java.util.*; import static java.lang.System.*; public class Main { static FastScanner sc = new FastScanner(System.in); public static void main(String[] args) { int n = sc.nextInt(); ArrayDeque stack = new ArrayDeque<>(); int[] ar = new int[n]; String s = sc.next(); for (int i=0; i Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} public void close() { try {in.close();} catch (IOException e) {} } }