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