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#include <bits/stdc++.h>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n, x[25];
void afisare(int k)
{
for(int i = 1; i <= k; i ++)
g << x[i] << " ";
g << "\n";
}
bool valid(int k)
{
if(x[k - 1] < x[k])return true;
return false;
}
void backtrack(int k)
{
for(int i = 1; i <= n; i ++)
{
x[k] = i;
if(valid(k))
{
afisare(k);
if(k < n)backtrack(k + 1);
}
}
}
int main()
{
f >> n;
backtrack(1);
return 0;
}