import java.util.Scanner;

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 total = 0;

        if(a == 5){
            total += 5;
        }
        if (a == 7){
            total += 7;
        }
        if( b == 5){
            total += 5;
        }
        if ( b == 7){
            total += 7;
        }
        if( c == 5){
            total += 5;
        }
        if ( c == 7){
            total += 7;
        }

        if(total == 17){
            System.out.println("YES");
        }else{
            System.out.println("NO");
        }

    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz