T1题解

#include<bits/stdc++.h>
using namespace std;
int a,b,c;
int main(){
    cin>>a>>b>>c;
    if(a==1&&b==2&&c==3){
        cout<<"YES";
    }
    else{
        if((a==1&&b==2&&c!=3)||(a==1&&b!=2&&c==3)||(a!=1&&b==2&&c==3)){
            cout<<"YES";
        }
        else{
            cout<<"NO";
       }
    }
	return 0;
}