#include <bits/stdc++.h>
using namespace std;

#define SZ(a) (int)a.size()
#define ALL(a) a.begin(), a.end()
#define FOR(i, a, b) for (int i = (a); i<(b); ++i)
#define RFOR(i, b, a) for (int i = (b)-1; i>=(a); --i)
#define MP make_pair
#define PB push_back
#define F first
#define S second

typedef long long LL;
typedef pair<int, int> PII;
typedef vector<int> VI;

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n, k;
	cin >> n >> k;
	vector<pair<int, int>> vec[31];
	FOR(i, 0, n) {
		int a, b;
		cin >> a >> b;
		a--;
		b--;
		vec[a].emplace_back(b, i);
	}
	set<pair<int, int>> s;
	vector<int> ans(n);
	FOR(a, 0, 31) {
		for (auto bi : vec[a]) {
			s.emplace(bi);
		}
		FOR(j, 0, k) {
			if (s.empty()) {
				break;
			}
			auto [b, i] = *s.begin();
			s.erase(s.begin());
			assert(a <= b);
			ans[i] = a;
		}
	}
	assert(s.empty());
	for (int x : ans) {
		cout << x + 1 << "\n";
	}
	return 0;
}