#include <iostream>
#include <string>

std::string encrypt(const std::string& str, std::size_t n) {
  std::string res;
  for (auto c : str) {
    if ('a' <= c && c <= 'z') {
      res += (c + n - 'a') % ('z' - 'a' + 1) + 'a';
    } else if ('A' <= c && c <= 'Z') {
      res += (c + n - 'A') % ('Z' - 'A' + 1) + 'A';
    } else {
      res += c;
    }
  }
  return res;
}

int main() {
  std::string line;
  std::getline(std::cin, line);
  std::cout << encrypt(line, 2) << std::endl;
}