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Cod sursa(job #254941)
#include <cstdio>
const int MAX_N = 35;
int n, k, s;
long long z;
long long d[MAX_N];
int a[MAX_N];
void solve(int st, int dr)
{
int i;
if (st > dr) return;
int l = dr - st + 1;
if (st == dr) { a[st] = s; return; }
long long q = 0;
for (i = 1; i <= l; ++i)
{
if (q + d[i - 1] * d[l - i] * z >= k) break;
q += d[i - 1] * d[l - i] * z;
}
k -= q;
a[st] = s + i - 1;
z *= d[l - i];
solve(st + 1, st + i - 1);
z /= d[l - i];
s += i;
solve(st + i, dr);
s -= i;
}
int main()
{
int i, j;
freopen("planeta.in", "r", stdin);
freopen("planeta.out", "w", stdout);
scanf("%d %d", &n, &k);
d[0] = 1;
for (i = 1; i <= n; ++i)
for (j = 0; j < i; ++j) d[i] += d[j] * d[i - j - 1];
s = z = 1;
solve(1, n);
for (i = 1; i <= n; ++i) printf("%d ", a[i]);
}