Problem:
Score: 100 points

Problem Statement

A triple of numbers is said to be poor when two of those numbers are equal but the other number is different from those two numbers.

You will be given three integers A, B, and C. If this triple is poor, print Yes; otherwise, print No.

Constraints

A, B, and C are all integers between 1 and 9 (inclusive).

Input

Input is given from Standard Input in the following format:

A B C

Output

If the given triple is poor, print Yes; otherwise, print No.

Sample Input 1

5 7 5

Sample Output 1

Yes

A and C are equal, but B is different from those two numbers, so this triple is poor.

Sample Input 2

4 4 4

Sample Output 2

No

A, B, and C are all equal, so this triple is not poor.

Sample Input 3

4 9 6

Sample Output 3

No

Sample Input 4

3 3 4

Sample Output 4

Yes

Solution in C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

//Written by Rhitwik Saha//
#include <bits/stdc++.h>
using namespace std;
#define int         long long
#define mp          make_pair
#define pb          push_back
#define pii         pair<int,int>
#define vi          vector<int>
#define vb          vector<bool>
#define vc          vector<char>
#define vii         vector<pii>
//#define mi          map<int,int>
//#define mii         map<pii,int>
#define all(a)      (a).begin(),(a).end()
#define F           first
#define S           second
#define sz(x)       (int)x.size()
#define ub(x)       upper_bound(x)
#define lb(x)       lower_bound(x)
#define endl        '\n'
#define file        freopen("input.txt","r",stdin);freopen("output.txt","w",stdout)
#define fastio      ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
// #define N            1e5+5
#define M           1000000007
#define MAX         100005
#define mem0(a)     memset(a,0,sizeof(a))
#define prec        cout<<std::setprecision(9)<<std::fixed
#define forn(i,a,b)  for(int i=a;i<b;i++)
int i,j,k;
void Anon_mouS(){
    int a,b,c;
    cin>>a>>b>>c;
    if(a==b and b==c or a!=b and b!=c and c!=a)cout<<"NO";
    else cout<<"YES";

}
int32_t main(){
    fastio;
    // file;
    // sieve();
    int q=1;
    // cin>>q;
    while(q--)Anon_mouS();
    return 0;
}