from collections import *
import heapq
import bisect
import itertools


class UnionFind:
    def __init__(self, n):
        self.n = n
        self.parents = [-1] * n

    def find(self, x):
        if self.parents[x] < 0:
            return x
        else:
            self.parents[x] = self.find(self.parents[x])
            return self.parents[x]

    def union(self, x, y):
        x = self.find(x)
        y = self.find(y)

        if x == y:
            return

        if self.parents[x] > self.parents[y]:
            x, y = y, x

        self.parents[x] += self.parents[y]
        self.parents[y] = x

    def size(self, x):
        return -self.parents[self.find(x)]

    def same(self, x, y):
        return self.find(x) == self.find(y)

    def members(self, x):  # 多用すると重い
        root = self.find(x)
        return [i for i in range(self.n) if self.find(i) == root]

    def roots(self):
        return [i for i, x in enumerate(self.parents) if x < 0]

    def group_count(self):
        return len(self.roots())

    def all_group_members(self):
        group_members = defaultdict(list)
        for member in range(self.n):
            group_members[self.find(member)].append(member)
        return group_members

    def __str__(self):
        return "\n".join(f"{r}: {m}" for r, m in self.all_group_members().items())


dxdy = ((0, 1), (0, -1), (1, 0), (-1, 0), (1, 1), (-1, -1), (1, -1), (-1, 1))
INF = float("inf")
MOD = 998244353
mod = 998244353

N, Q = map(int, input().split())
table = [0] * (10**5 + 2)
query = [list(map(int, input().split())) for _ in range(Q)]
p = [[] for _ in range(N)]
for i, s, t in query:
    p[i - 1].append((s, t))
    table[s + 1] += 1
    table[t + 1] -= 1
for i in range(10**5 + 1):
    table[i + 1] += table[i]
acc = [0] * (10**5 + 2)
for i in range(10**5 + 1):
    acc[i + 1] = acc[i]
    if table[i] != 0:
        acc[i + 1] += 1 / table[i]
ans = [0] * N
# print(table[0:10])
# print(acc[0:10])
for i in range(N):
    for s, t in p[i]:
        ans[i] += acc[t + 1] - acc[s + 1]

for a in ans:
    print(a)