import java.util.Scanner;

public class test2 {

	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);
		int n = 30;
		int m = 40;

		for(;n < m; n++) {
			if(n % 3 ==0) {
				System.out.println(n);
				continue;
			} else if(n % 10 == 3) {
				System.out.println(n);
				continue;
			}

			//　なんだかなぁ
			int tmp = n;
			while(tmp > 10) {
				tmp = tmp /10;
			}
			if(tmp % 10 == 3) {
				System.out.println(n);
			}
		}

	}

}