#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
//using mint = modint1000000007;
//const int mod = 1000000007;
//using mint = modint998244353;
//const int mod = 998244353;
//const int INF = 1e9;
//const long long LINF = 1e18;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep2(i,l,r)for(int i=(l);i<(r);++i)
#define rrep(i, n) for (int i = (n-1); i >= 0; --i)
#define rrep2(i,l,r)for(int i=(r-1);i>=(l);--i)
#define all(x) (x).begin(),(x).end()
#define allR(x) (x).rbegin(),(x).rend()
#define endl "\n"
#define P pair<int,int>
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, q; cin >> n >> q;
	vector<int>h(q), s(q), t(q);
	int mx = 100000;
	vector<int>imos(mx + 1);
	rep(i, q) {
		cin >> h[i] >> s[i] >> t[i];
		h[i]--;
		imos[s[i]]++;
		imos[t[i]]--;
	}
	rep(i, mx)imos[i + 1] += imos[i];
	vector<double>val(mx), sval(mx + 1);
	rep(i, mx)if (0 != imos[i])val[i] = 1. / imos[i];
	rep(i, mx)sval[i + 1] = sval[i] + val[i];
	vector<double>ans(n);
	rep(i, q) ans[h[i]] += sval[t[i]] - sval[s[i]];
	rep(i, n) cout << setprecision(16) << ans[i] << endl;
	return 0;
}