import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while (scanner.hasNext()) { Integer get = Integer.valueOf(scanner.nextLine()); if (get == 0) { break; } long n1 = 0; long n2 = 1; for (int i = 1; i <= get; i++) { n1 += n2;//grow up to adult n2 = n1 - n2; } System.out.println(n1 + n2); } } } |
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