'use strict';
const main = input => {
  let s = input[0], ans = '';
  for(let i=0; i<s.length; i++) {
    ans += String.fromCharCode(s.charCodeAt(i)+1);
  }
  console.log(ans);
  
}
main(require("fs").readFileSync("/dev/stdin", "utf8").split('\n'));