import 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 g = 0;
    int na = 0;
    if(A==5){
        g++;
    }else if(A==7){
        na++;
}
    if(B==5){
        g++;
    }else if(B==7){
        na++;
}
    if(C==5){
        g++;
    }else if(C==7){
        na++;    
    }
    
    if(g==2 && na==1){
    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