N,Q=map(int,input().split())
ans=[0 for i in range(N)]
canon=[]
time=[0 for i in range(200000)]
for i in range(Q):
    I,S,T=map(int,input().split())
    time[S+1]+=1
    time[T+1]-=1
    canon.append((I,S,T))
for i in range(150000):
    time[i+1]+=time[i]
for i in range(150000):
    if time[i]>0:
        time[i]=1/time[i]
for i in range(150000):
    time[i+1]+=time[i]
for i,s,t in canon:
    ans[i-1]+=time[t]-time[s]
print(*ans,sep="\n")