class Answer {
	constructor(input) {
		const data = input.split(' ').map(Number);
		this.S = data[0];
		this.F = data[1];
	}

	main() {
		const ans = Math.floor((this.S / this.F) + 1);
		this.dest(ans);
	}

	dest(ans) {
		console.log(ans);
	}
}
new Answer(require("fs").readFileSync("/dev/stdin", "utf8")).main();