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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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 int count = 0; count 0 if(A == 5 || A == 7) {
			count++;
		} A == 5 || A == 7 A == 5 A 5 A == 7 A 7 {
			count++;
		} count++ count if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		} A == 7 A 7 {
			if(B == 5) {
				count++;
			}
		} if(B == 5) {
				count++;
			} B == 5 B 5 {
				count++;
			} count++ count if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		} A == 5 A 5 {
			if(B == 5 || B == 7) {
				count++;
			}
		} if(B == 5 || B == 7) {
				count++;
			} B == 5 || B == 7 B == 5 B 5 B == 7 B 7 {
				count++;
			} count++ count if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		} A == 7 && B == 5 A == 7 A 7 B == 5 B 5 {
			if(C == 5) {
				count++;
			}
		} if(C == 5) {
				count++;
			} C == 5 C 5 {
				count++;
			} count++ count if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		} A == 5 && B == 7 A == 5 A 5 B == 7 B 7 {
			if(C == 5) {
				count++;
			}
		} if(C == 5) {
				count++;
			} C == 5 C 5 {
				count++;
			} count++ count if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		} A == 5 && B == 5 A == 5 A 5 B == 5 B 5 {
			if(C == 7) {
				count++;
			}
		} if(C == 7) {
				count++;
			} C == 7 C 7 {
				count++;
			} count++ count if(count == 3) {
			System.out.println("YES");
		} else {
			System.out.println("NO");
		} count == 3 count 3 {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			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();
		int count = 0;
		if(A == 5 || A == 7) {
			count++;
		}
		if(A == 7) {
			if(B == 5) {
				count++;
			}
		} else if(A == 5) {
			if(B == 5 || B == 7) {
				count++;
			}
		}
		if(A == 7 && B == 5) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 7) {
			if(C == 5) {
				count++;
			}
		} else if(A == 5 && B == 5) {
			if(C == 7) {
				count++;
			}
		}
		if(count == 3) {
			System.out.println("YES");
		} else {
			System.out.println("NO");
		}

	}

}
