CF290D Orange

Description

![](https://cdn.luogu.com.cn/upload/vjudge_pic/CF290D/20f37fba13fdbf89ddfa50f3b66f2b09e51cb480.png)

Input Format

The first line of the input is a string (between 1 and 50 characters long, inclusive). Each character will be a letter of English alphabet, lowercase or uppercase. The second line of the input is an integer between 0 and 26, inclusive.

Output Format

Output the required string.