import java.util.Scanner;

public class  Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int fiv = 0;
        int sev = 0; //初期値設定
        
        for(int i = 0; i < 3; i++) {
            int num = Integer.parseInt(sc.next());//入力値
            switch(num){ //
            case 5:
                fiv++;
                break;
            case 7:
                sev++;
                break;
            }
        }
        if(fiv == 2 && sev == 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