function Main(input) {
  const data = input.split(" ");

  if (data[0] === data[1]) {
    console.log(1);
  } else if (data[0]%data[1]===0){
    console.log((data[0]/data[1])+1);
  } else {
    console.log(Math.ceil(data[0]/data[1]));
  }
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));