Not everyone is as super smart as you are, Anton.  Us plebeians can barely walk upright, much less understand Western Arabic numerals.

Congrats on your good fortune!

Yep
Why my code get WA3?
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <vector>
#include <cstring>
#include <set>
#include <map>
#include <cmath>
#include <algorithm>
using namespace std;

#define ll long long

const ll nmax = 100005;
const ll inf = 1234567890123;

ll A, B, C;
ll X, Y, Z;

int main()
{
   cin>>A>>B>>C;
   cin>>X>>Y>>Z;

    if(Z > C)
        cout<<"There are no miracles in life";
    else
    {
        ll ess = (ll)0;
        if(X > A) ess += X - A;
        if(Y > B) ess += Y - B;
        if(C - Z >= ess)
            cout<<"It is a kind of magic";
        else
            cout<<"There are no miracles in life";
    }


   return 0;
}


or more simple

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <vector>
#include <cstring>
#include <set>
#include <map>
#include <cmath>
#include <algorithm>
using namespace std;

#define ll long long

const ll nmax = 100005;
const ll inf = 1234567890123;

ll A, B, C;
ll X, Y, Z;

int main()
{
   cin>>A>>B>>C;
   cin>>X>>Y>>Z;

   if(X > A)
        C -= (X - A);
   if(Y > B)
        C -= (Y - B);
   if(Z <= C)
        cout<<"It is a kind of magic";
   else
        cout<<"There are no miracles in life";

   return 0;
}

try
3 3 2
5 0 3
answer
YES

5 6 0
6 5 0
There are no miracles in life

6 5 0
5 6 0
There are no miracles in life

3 6 2
6 5 1
There are no miracles in life

4 6 2
6 5 1
It is a kind of magic

use long long