#include <bits/stdc++.h>

using namespace std;
const int N = 100010;
int n, k;
vector<int> path;
bool st[N];
//5 2
void print() {
    cout << "(";
    for (int i = 0; i < path.size() - 1; ++i)
        cout << path[i] << ",";
    cout << path.back() << ")";
}

void dfs(int step) {
    if (step == k + 1) {
        print();
        return;
    }
    for (int i = 1; i <= n; i++) {
        if (!st[i]) {
            path.push_back(i);
            st[i] = true;

            dfs(step + 1);

            st[i] = false;
            path.pop_back();
        }
    }
}

int main() {
    cin >> n >> k;
    dfs(1);
    return 0;
}