#include <bits/stdc++.h>

using i64 = long long;
using u64 = unsigned long long;

std::mt19937_64 rng(u64(new char));

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int x, y;
    std::cin >> x >> y;

    constexpr int n = 10'000'000;
    std::vector<int> a(n);
    for (int i = 0; i < n; i++) {
        a[i] = rng();
    }

    std::sort(begin(a), end(a));

    std::cout << ((x + y) ^ a[0] ^ a[0]);

    return 0;
}

implementer.cpp: In function ‘int main()’:
implementer.cpp:22:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   22 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~
/usr/bin/ld: /tmp/ccjtaE4i.o: in function `main':
answer.code:(.text.startup+0x0): multiple definition of `main'; /tmp/cc64r1Lh.o:implementer.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cc64r1Lh.o: in function `main':
implementer.cpp:(.text.startup+0x12b): undefined reference to `init(int)'
/usr/bin/ld: implementer.cpp:(.text.startup+0x1d0): undefined reference to `inv(int)'
collect2: error: ld returned 1 exit status