#include <iostream>
#include <vector>

void solve(const std::pair<uint32_t, uint32_t>& left, const std::pair<uint32_t, uint32_t>& right, const uint32_t& max, uint32_t count = 2) {
    if (count >= max)
        return;

    std::pair<uint32_t, uint32_t> result = { left.first + right.first, left.second + right.second };

    solve(left, result, max, count + 1);
    std::cout << result.first << "/" << result.second << " ";
    solve(result, right, max, count + 1);
}

int main()
{
    uint32_t n;
    std::cin >> n;

    uint32_t max = 2;
    for (uint32_t i = 2; i <= n; i++)
        max += 2 * i - 1;

    solve({ 0,1 }, { 1,0 }, max);

    return 0;
}