function main(input) {
  var lines = splitLine(input)
  const N = Number(lines.shift())
  lines[0] = lines[0].split(' ').map(e => Number(e))
  const D = lines[0][0]
  const X = lines.shift()[1]
  lines = lines.map(e => Number(e))
  var eat = lines.map(e => Math.ceil(D / e)).reduce((p, c) => p + c)
  console.log(eat + X)
}

function splitLine(input) {
  var lines = input.split('\n')
  lines.pop()
  return lines
}

(() => {
  process.stdin.resume();
  process.stdin.setEncoding('utf8');
  var input_string = '';
  process.stdin.on('data', chunk => input_string += chunk);
  process.stdin.on('end', () => main(input_string));
})()
