/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author #Panda
 */
public class MyString implements IString {

    @Override
    public int f1(String string) {
        String thisStr[] = string.split("\\s+");
        int sum = 0;
        int firstIndex = 0;
        for (int i = 0; i < thisStr.length; i++) {
            boolean check = true;
            for (int j = 0; j < thisStr[i].length(); j++) {
                if (!Character.isDigit(thisStr[i].charAt(j))) {
                    check = false;
                    break;
                }
            }
            if (check) {
                firstIndex = i;
                for (int num = Integer.parseInt(thisStr[i]); num > 0; num /= 10) {
                    sum += num % 10;
                }
                break;
            }
        }
        for(int i = thisStr.length - 1; i > firstIndex; i--)
        {
            boolean check = true;
            for(int j = 0; j < thisStr[i].length(); j++)
            {
                if (!Character.isDigit(thisStr[i].charAt(j))) {
                    check = false;
                    break;
                }
            }
            if (check) {
                for (int num = Integer.parseInt(thisStr[i]); num > 0; num /= 10) {
                    sum += num % 10;
                }
                break;
            }
        }
        return sum;
    }

    @Override
    public String f2(String string) {
        String s = "";
        int firstIndex = 0;
        String thisStr[] = string.split("\\s+");
        for (int i = 0; i < thisStr.length; i++) {
            boolean check = true;
            for (int j = 0; j < thisStr[i].length(); j++) {
                if (!Character.isDigit(thisStr[i].charAt(j))) {
                    check = false;
                    break;
                }
            }
            if (check) {
                firstIndex = i;
                StringBuilder s1 = new StringBuilder(thisStr[i]);
                s += s1.reverse();
                break;
            }
        }
        s += "\t";
        for(int i = thisStr.length - 1; i > firstIndex; i--)
        {
            boolean check = true;
            for(int j = 0; j < thisStr[i].length(); j++)
            {
                if (!Character.isDigit(thisStr[i].charAt(j))) {
                    check = false;
                    break;
                }
            }
            if (check) {
                StringBuilder s2 = new StringBuilder(thisStr[i]);
                s += s2.reverse();
                break;
            }
        }
        return s;
    }
}