import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        while (in.hasNext()) {
            // solution1(in);
            solution2(in);
        }
    }

    /**
     * 模拟法: 取模
     * @param in
     */
    private static void solution1(Scanner in){
        int n1 = in.nextInt();
        int n2 = in.nextInt();

        int clockWise = (n2-n1+360)%360;
        int antiClockWise = 360-clockWise;

        if(clockWise <= antiClockWise){
            System.out.println(clockWise);
        }else{
            System.out.println(-antiClockWise);
        }
    }

    /**
     * 模拟法: 取模
     * @param in
     */
    private static void solution2(Scanner in){
        int n1 = in.nextInt();
        int n2 = in.nextInt();

        int clockWise = (n2-n1+360)%360;
        int antiClockWise = (n1-n2+360)%360;

        if(clockWise <= antiClockWise){
            System.out.println(clockWise);
        }else{
            System.out.println(-antiClockWise);
        }
    }
}