var lines = [];
var reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
});
reader.on('line', function (line) {
  lines.push(line);
  var ab = [];
  lines[0].split(" ").map(function(x) {
     ab.push(parseInt(x));
  } );
  var s = ab[0];
  var f = ab[1];
  console.log(Math.floor(s/f)+1);
    
  process.exit(0);
});
process.stdin.on('end', function () {
});