let main = (standardInput) => {
    var line = standardInput.split(/[' '\n]/)
    //console.log(typeof(line[0]));
    var a = Number.parseInt(line[0]);
    var b = Number.parseInt(line[1]);
    var ans = Math.floor(a / b) +1;
    console.log(ans);
}

main(require('fs').readFileSync('/dev/stdin', 'UTF-8'));