import java.util.*;
public class Main {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	}

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

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	}

} Main public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	} main {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	} Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int c5=0; c5 0 int c7=0; c7 0 int a=sc.nextInt(); a sc.nextInt() sc.nextInt sc if(a==7) c7++;
		else if(a==5) c5++; a==7 a 7 c7++ c7 if(a==5) c5++; a==5 a 5 c5++ c5 int b=sc.nextInt(); b sc.nextInt() sc.nextInt sc if(b==7) c7++;
		else if(b==5) c5++; b==7 b 7 c7++ c7 if(b==5) c5++; b==5 b 5 c5++ c5 int c=sc.nextInt(); c sc.nextInt() sc.nextInt sc if(c==7) c7++;
		else if(c==5) c5++; c==7 c 7 c7++ c7 if(c==5) c5++; c==5 c 5 c5++ c5 if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO"); c5==2&&c7==1 c5==2 c5 2 c7==1 c7 1 System.out.println("YES") System.out.println System.out System System.out "YES" System.out.println("NO") System.out.println System.out System System.out "NO" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	}

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

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int c5=0;
		int c7=0;
		int a=sc.nextInt();
		if(a==7) c7++;
		else if(a==5) c5++;
		
		int b=sc.nextInt();
		if(b==7) c7++;
		else if(b==5) c5++;
		
		int c=sc.nextInt();
		if(c==7) c7++;
		else if(c==5) c5++;
		
		if(c5==2&&c7==1) System.out.println("YES");
		else System.out.println("NO");
		

	}

}
