import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	}
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	}
} Main public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	} main {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	} try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		} {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		} BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in)) BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in)) new BufferedReader(
				new InputStreamReader(System.in)) String in = br.readLine(); in br.readLine() br.readLine br String chr[] = in.split(" "); chr in.split(" ") in.split in " " int a = Integer.parseInt(chr[0]); a Integer.parseInt(chr[0]) Integer.parseInt Integer chr[0] chr 0 int b = Integer.parseInt(chr[1]); b Integer.parseInt(chr[1]) Integer.parseInt Integer chr[1] chr 1 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1) System.out.println System.out System System.out a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1 a==b a b a*2 a 2 a>b?a+a-1
					 		   :b+b-1 a>b a b a+a-1 a+a a a 1 b+b-1 b+b b b 1 String[] args args public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	}
} public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	}
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main{
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			String in = br.readLine();
			String chr[] = in.split(" ");
			int a = Integer.parseInt(chr[0]);
			int b = Integer.parseInt(chr[1]);

			 System.out.println(a==b?a*2
					 		   :a>b?a+a-1
					 		   :b+b-1);
		}
	}
}