import sys import io, os input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline from heapq import heappop,heappush N,QU=map(int,input().split()) ANS=1 DIS=[1<<30]*(N+1) DIS[1]=0 E=[[] for i in range(N+1)] Q=[] LANS=[] for i in range(QU): p,x,y=map(int,input().split()) E[x].append((y,p)) E[y].append((x,p)) if DIS[x]
time: DIS[to]=time heappush(Q,DIS[to]*1000000+to) LANS.append(ANS) print("\n".join(map(str,LANS)))