public class Day1 { public static void main(String[] args) { // First problem of the day String capcha = " //YOUR CAPCHA CODE GOES HERE //"; int summe = 0; int length = capcha.length(); for(int i=1; i= length ) j = i - length/2; else j = i + length/2; if ((capcha.charAt(i)-'0') == (capcha.charAt(j)-'0')) summe = summe + (capcha.charAt(i)-'0'); } System.out.println("Capcha 2:" + summe); } }