import java.util.Scanner;

public class Main {
    //Public - могу получить доступ из любой части проекта
    //Static - вызываю как octStringToInt, а не object.octStringToInt()
    //int - return int
    public static int octStringToInt(String s) {
        int answer = Integer.parseInt(s,8);
        return answer;
    }

    public static boolean isNumeric(String s) {
        for (char c : s.toCharArray())
        {
            if (!Character.isDigit(c))
                return false;
        }
        return true;
    }

    public static int countNums(String s) {
        int answer = 0;
        for(String str : s.split(" ")) {
            if(isNumeric(str))
                answer++;
        }
        return answer;
    }

    public static void main(String[] agrs) {
        System.out.println(octStringToInt("777"));
        System.out.println(countNums("The user with the nickname koala757677 this month wrote 3 times more comments than the user with the nickname croco181dile920 4 months ago"));
    }
}