import sys
input = sys.stdin.readline

N,Q=map(int,input().split())
# UnionFind

Group = [i for i in range(N+1)] # グループ分け
Nodes = [1]*(N+1) # 各グループのノードの数

def find(x):
    while Group[x] != x:
        x=Group[x]
    return x

def Union(x,y):
    if find(x) != find(y):
        if Nodes[find(x)] < Nodes[find(y)]:
            
            Nodes[find(y)] += Nodes[find(x)]
            Nodes[find(x)] = 0
            Group[find(x)] = find(y)
            
        else:
            Nodes[find(x)] += Nodes[find(y)]
            Nodes[find(y)] = 0
            Group[find(y)] = find(x)

QS=[list(map(int,input().split())) for i in range(Q)]

for i in range(Q):
    if len(QS[i])==2:
        continue
    com,u,v=QS[i]

    if com==1:
        if find(u)!=find(v):
            if Nodes[find(u)]+Nodes[find(v)]==N:
                last=i
                break
            else:
                Union(u,v)

ANS=[-1]*(N+1)

for i in range(N+1):
    if find(i)!=1:
        no_one=i

for i in range(N+1):
    if find(i)==1:
        ANS[i]=no_one
    else:
        ANS[i]=1

for i in range(Q):
    if len(QS[i])==3:
        continue
    com,u=QS[i]

    if com==2:
        if i>=last:
            print(-1)
        else:
            print(ANS[u])