#include <fstream>
#include <algorithm>
#include <cmath>
#include <iostream>
#include <bits/stdc++.h>


using namespace std ;




int N ;
int XX, YY;
char a ;
int number ;
string sir ;
int main()
{
    cin >> N ;
    N =1 ;
    while(N --)
    {
        cin >> sir ;
        XX = (sir[0] - '0'  )* 10 + sir[1] - '0';
        YY = (sir[3] - '0'  )* 10 + sir[4] - '0';
        if(XX < 24 && YY < 60)
        {
           if(sir[3] == 0 && sir[4] == 0)
            cout << "YES\n" ;
           else if(sir[0] == sir[3] && sir[1] == sir[4])
            cout << "YES\n" ;
           else if(sir[0] == sir[4] && sir[1] == sir[3])
            cout << "YES\n" ;
           else if(fabs(sir[0] - sir[1] + sir[3] - sir[4]) == 2)
            cout << "YES\n" ;
           else cout << "NO\n" ;



        }
        else cout << "NO\n" ;
    }


    return  0 ;
}