import java.util.Scanner;

public class Main{
    public static void main(String[] args){
	Scanner scan = new Scanner(System.in);

	int[] uta = new int[11];
	int[] iroha = new int[3];
	for(int i = 0; i < 3; i++){
	    iroha[i] = scan.nextInt();
	    uta[iroha[i]]++;
	}

	if(uta[5] == 2 && uta[7] == 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