#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<algorithm>
#include<cmath>
#include<utility>
#include<set>
#include<vector>
#include<map>
#include<queue>
#include<stack>
#define maxn 1010
#define INF 0x3f3f3f3f
#define LL long long
#define ULL unsigned long long
#define E 1e-8
#define mod 1000000007
#define P pair<int,int>
using namespace std;
int main()
{
    int a[3];
    while(cin>>a[0]>>a[1]>>a[2])
        {
            int sum = 0,sum2 = 0;
        for(int i=0;i<3;i++){
            if(a[i] == 5)
            sum++;
        else
            if(a[i] == 7)
            sum2++;
        }
        if((sum == 2) && (sum2 == 1))
            cout << "YES" <<endl;
        else
            cout<<"NO"<<endl;
    }
}