'use strict'

function main(s) {

  s = s.split('\n');
  const n = Number(s[0]);
  const d = Number(s[1].split(' ')[0]);
  const remain = Number(s[1].split(' ')[1]);
  const a = s.slice(2, -1).map(el => Number(el));
  let eaten = 0;

  for (let num of a) {
    let i = 0;
    while ((num * i) + 1 <= d) {
      eaten += 1;
      i += 1;
    }
  }

  const ans = remain + eaten;
  console.log(ans);
}

main(require("fs").readFileSync("/dev/stdin", "utf8"));
