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#include <iostream>
#include <vector>

int main() {
    int32_t k;
    std::cin >> k;

    std::vector<bool> to_1;
    std::vector<bool> to_2;
    std::vector<bool> to_end;

    if (k == 1) {
        // nasty special case
        to_1.push_back(true);
        to_2.push_back(false);
        to_end.push_back(false);
    }

    while (k > 1) {
        if (k == 3) {
            // another nasty special case
            to_1.push_back(true);
            to_2.push_back(false);
            to_end.push_back(true);
            k -= 1;
        }

        to_1.push_back(true);
        to_2.push_back(true);
        to_end.push_back(false);

        to_1.push_back(false);
        to_2.push_back(true);
        if (k % 2 == 1) {
            to_end.push_back(true);
            k -= 1;
        } else {
            to_end.push_back(false);
        }

        to_1.push_back(true);
        to_2.push_back(false);
        to_end.push_back(false);

        k /= 2;
    }

    to_1.push_back(false);
    to_2.push_back(false);
    to_end.push_back(false);

    std::cout << to_1.size() << "\n";
    for (int32_t i = 0; i < (int32_t)to_1.size(); ++i) {
        int32_t left = 2;

        if (to_1[i]) {
            left -= 1;
            std::cout << i + 2 << " ";
        }
        if (to_2[i]) {
            left -= 1;
            std::cout << i + 3 << " ";
        }
        if (to_end[i]) {
            left -= 1;
            std::cout << to_1.size() << " ";
        }

        switch (left) {
            case 2:
                std::cout << "-1 ";
                // fallthrough
            case 1:
                std::cout << "-1 ";
        }
        std::cout << "\n";
    }
}