@@ -0,0 +1,1228 @@
+/*%0A * %D0%94%D0%B0%D0%B4%D0%B5%D0%BD %D0%B5 %D1%82%D0%B5%D0%BA%D1%81%D1%82. %D0%9D%D0%B0%D0%BF%D0%B8%D1%88%D0%B5%D1%82%D0%B5 %D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%B0, %D0%BA%D0%BE%D1%8F%D1%82%D0%BE %D0%BF%D1%80%D0%BE%D0%BC%D0%B5%D0%BD%D1%8F %D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%8A%D1%80%D0%B0 %D0%BD%D0%B0 %D0%B1%D1%83%D0%BA%D0%B2%D0%B8%D1%82%D0%B5 %D0%BD%D0%B0 %D0%B2%D1%81%D0%B8%D1%87%D0%BA%D0%B8 %D0%BC%D0%B5%D1%81%D1%82%D0%B0 %D0%B2 %D1%82%D0%B5%D0%BA%D1%81%D1%82%D0%B0, %D0%B7%D0%B0%D0%B3%D1%80%D0%B0%D0%B4%D0%B5%D0%BD%D0%B8 %D1%81 %D1%82%D0%B0%D0%B3%D0%BE%D0%B2%D0%B5%D1%82%D0%B5 %3Cupcase%3E %D0%B8 %3C/upcase%3E. %D0%A2%D0%B0%D0%B3%D0%BE%D0%B2%D0%B5%D1%82%D0%B5 %D0%BD%D0%B5 %D0%BC%D0%BE%D0%B3%D0%B0%D1%82 %D0%B4%D0%B0 %D0%B1%D1%8A%D0%B4%D0%B0%D1%82 %D0%B2%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8.%0A */%0A%0Apublic class Solution %7B%0A        public static void main(String%5B%5D args) %7B%0A%09%09String input =%0A%09%09%09%22We are living in a %3Cupcase%3Eyellow submarine%3C/upcase%3E. We don't have %3Cupcase%3Eanything%3C/upcase%3E else.%22;%0A%09%09%0A%09%09final String UPCASE_OPEN_TAG = %22%3Cupcase%3E%22;%0A%09%09final String UPCASE_END_TAG = %22%3C/upcase%3E%22;%0A%09%09%0A%09%09int upcaseStartIndex = input.indexOf(UPCASE_OPEN_TAG);%0A%09%09int upcaseEndIndex = input.indexOf(UPCASE_END_TAG) + UPCASE_END_TAG.length() - 1;%0A%09%09%0A%09%09while (upcaseStartIndex != -1) %7B%0A%09%09%09int substringBetweenTagsStartIndex = upcaseStartIndex + UPCASE_OPEN_TAG.length();%0A%09%09%09int substringBetweenTagsEndIndex = input.indexOf(UPCASE_END_TAG, substringBetweenTagsStartIndex) - 1;%0A%09%09%09%0A%09%09%09input = input.replace(%0A%09%09%09%09input.substring( upcaseStartIndex, upcaseEndIndex + 1),%0A%09%09%09%09input.substring( substringBetweenTagsStartIndex, substringBetweenTagsEndIndex + 1 ).toUpperCase()%0A%09%09%09);%0A%09%09%09%09%09%0A%09%09%09upcaseStartIndex = input.indexOf(UPCASE_OPEN_TAG);%0A%09%09%09upcaseEndIndex = input.indexOf(UPCASE_END_TAG) + UPCASE_END_TAG.length() - 1;%0A%09%09%7D%0A%09%09%0A%09%09System.out.println( input );%0A%09%7D%0A%7D%0A

Create 13-3.java