import java.util.Scanner;


class No_169 {
	public static void main(String args[]) {

		Scanner stdIn = new Scanner(System.in);

		double percents = stdIn.nextDouble();
		int minutes = stdIn.nextInt();
		double time = 1 / (1 - (percents / 100)); 
		
		System.out.println(Math.round(minutes * time));	
	}
}