#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 4000000000000000001



int main(){
	
	int N,Q;
	cin>>N>>Q;
	vector<int> imos(100005);
	vector<int> I(Q),S(Q),T(Q);
	rep(i,Q){
		cin>>I[i]>>S[i]>>T[i];
		I[i]--;
		imos[S[i]]++;
		imos[T[i]]--;
	}
	rep(i,imos.size()-1)imos[i+1] += imos[i];
	
	vector<double> sum(100005);
	rep(i,imos.size()){
		if(imos[i]!=0){
			sum[i] = 1.0 / imos[i];
		}
		if(i!=0)sum[i] += sum[i-1];
	}
	vector<double> ans(N);
	rep(i,Q){
		double t = sum[T[i]-1];
		if(S[i]!=0)t -= sum[S[i]-1];
		ans[I[i]] += t;
	}
	rep(i,N){
		cout<<fixed<<setprecision(15)<<ans[i]<<endl;
		
	}
	
	return 0;
}