#include #include #include typedef uint32_t uint_t; const uint32_t N = 1 << 11, P = 998244353; static uint32_t cubes[N]; int main() { for (uint64_t i = 0; i < N; i++) { cubes[i] = (i * i % P) * i % P; } uint64_t res = 0; for (uint32_t n = 1; n < N; n++) { for (uint32_t j = 0; j < n; j++) { uint64_t rn = 0; for (uint32_t k = 0; k < j; k++) { rn += cubes[n ^ k] * (uint64_t) cubes[j ^ k] % P; } res = (res + rn * 6 % P * cubes[n ^ j]) % P; } printf("%4u: %9u \n", n, (uint32_t) res); } }