

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	}

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	} main {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int B = sc.nextInt(); B sc.nextInt() sc.nextInt sc int coin = 0; coin 0 if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		} A > B A B {
			coin = A * 2 - 1;
		} coin = A * 2 - 1 coin A * 2 - 1 A * 2 A 2 1 if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		} A == B A B {
			coin = A * 2;
		} coin = A * 2 coin A * 2 A 2 {
			coin = B * 2 - 1;
		} coin = B * 2 - 1 coin B * 2 - 1 B * 2 B 2 1 System.out.println(coin) System.out.println System.out System System.out coin String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	}

} Main


import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int coin = 0;
		if(A > B) {
			coin = A * 2 - 1;
		} else if(A == B) {
			coin = A * 2;
		} else {
			coin = B * 2 - 1;
		}
		System.out.println(coin);
	}

}
